The US-Russia nuclear arms treaty New START has now expired
(Feb. 2026)
https://www.bbc.com/news/articles/c4g31n4ey9go
https://www.icanw.org/new_start_expiration
https://www.armscontrol.org/pressroom/2026-02/joint-statement-high-ranking-former-officials-and-nuclear-experts-across-globe
https://fas.org/initiative/status-world-nuclear-forces/
2025 – should
the EU have its own nuclear deterrent?
https://carnegieendowment.org/emissary/2025/04/can-europe-build-its-own-nuclear-umbrella?lang=en&fbclid=PAZXh0bgNhZW0CMTEAAaaewGQd_NnqW_ztqCmUMGXzl4hAP1tEe3eR0boNq9O85t9Oe9giCwrw5fE_aem_aD2j502ay1yxxYny7YRh4g
https://www.politico.eu/article/donald-tusk-plan-train-poland-men-military-service-russia/
https://www.ifri.org/en/media-external-article/europe-thinks-unthinkable-nuclear-bomb
https://www.youtube.com/watch?v=6Tw1GPjHvF8
https://www.lemonde.fr/en/opinion/article/2025/03/12/the-fact-that-the-debate-on-a-european-nuclear-deterrent-is-open-shows-the-extent-of-the-current-upheaval_6739066_23.html
https://spectator.clingendael.org/en/publication/eu-must-step-nuclear-non-proliferation
https://www.chathamhouse.org/2025/03/france-should-join-natos-nuclear-sharing-arrangements-strengthen-european-deterrence
https://en.wikipedia.org/wiki/Nuclear_sharing
https://www.visualcapitalist.com/global-nuclear-warhead-stockpiles-1945-2024/
https://carnegieendowment.org/europe/strategic-europe/2025/04/taking-the-pulse-can-europeans-build-their-independent-extended-nuclear-deterrent?lang=en
background
https://www.youtube.com/watch?v=XyJh3qKjSMk
https://www.youtube.com/watch?v=YN0qvNhtGhM
https://www.youtube.com/watch?v=s4VlruVG81w
https://www.youtube.com/watch?v=6T2uBeiNXAo
https://www.armscontrol.org/blog/2024-10-24/navigating-road-ahead
https://www.aljazeera.com/news/2023/11/2/putin-revokes-russias-ratification-of-nuclear-test-ban-treaty
https://www.armscontrol.org/act/2023-03/news/russia-suspends-new-start
https://www.armscontrol.org/act/2019-09/news/us-completes-inf-treaty-withdrawal
https://www.armscontrol.org/blog/2021-02/us-russian-nuclear-arms-control-watch
https://www.state.gov/on-the-extension-of-the-new-start-treaty-with-the-russian-federation/
https://ru.usembassy.gov/new-start-treaty-mythbusters/ https://sgp.fas.org/crs/nuke/R41219.pdf
the EU and NATO
https://www.epc.eu/publication/the-end-of-new-start-should-be-the-start-of-europes-nuclear-reckoning/
https://www.martenscentre.eu/blog/european-nuclear-deterrent-with-or-without-nato/
https://www.eeas.europa.eu/eeas/disarmament-non-proliferation-and-arms-export-control-0_en
https://www.nato.int/cps/en/natohq/topics_48895.htm
https://www.nato.int/cps/en/natohq/topics_50068.htm
https://www.europarl.europa.eu/RegData/etudes/BRIE/2024/759601/EPRS_BRI(2024)759601_EN.pdf
https://eu.boell.org/en/2016/05/25/european-union-and-nuclear-disarmament-sensitive-question old but it raises some good points
Meanwhile
North Korea
https://www.38north.org/2026/01/assessing-north-koreas-five-year-effort-to-develop-13-new-nuclear-and-missile-systems/
https://en.wikipedia.org/wiki/North_Korea_and_weapons_of_mass_destruction
https://en.wikipedia.org/wiki/Nuclear_power_in_North_Korea
https://www.phnompenhpost.com/opinion/north-korea-s-nuclear-provocations-a-threat-to-neighbours-and-asean#:~:text=North%20Korea's%20growing%20nuclear%20and,of%20millions%20are%20at%20risk.
https://www.hrw.org/world-report/2026/country-chapters/north-korea
and Iran
https://www.bbc.com/news/articles/cr57g1y8286o
https://www.cfr.org/articles/what-are-irans-nuclear-and-missile-capabilities
https://www.nbcnews.com/world/iran/iranian-government-shuts-internet-violent-crackdown-continues-rcna253147
https://en.wikipedia.org/wiki/United_States_strikes_on_Iranian_nuclear_sites#:~:text=U.S.%20president%20Donald%20Trump%20said,set%20back%20around%202%20years.
https://www.reuters.com/world/us-still-believes-iran-has-not-decided-build-nuclear-weapon-us-officials-say-2024-10-11/
https://iranprimer.usip.org/blog/2024/mar/11/2024-us-intelligence-report-iran
https://www.timesofisrael.com/as-iran-vows-revenge-israel-worries-it-could-get-even-by-going-nuclear/
https://www.stimson.org/2024/will-iran-get-the-bomb-in-2024/
What follows
is not an essay plan but some notes with information and ideas that might be
useful in working out an essay plan.
Introduction – this title concerns two separate but connected topics,
nuclear armaments and the development of nuclear power for peaceful purposes.
It is also related to the dangers posed by other Weapons of Mass Destruction
(WMDs).
Nuclear arms – some information
Which countries have nuclear weapons?
https://www.statista.com/chart/8301/the-countries-holding-the-worlds-nuclear-arsenal/
https://www.icanw.org/nuclear_arsenals
https://www.statista.com/chart/8301/the-countries-holding-the-worlds-nuclear-arsenal/
https://www.armscontrol.org/factsheets/Nuclearweaponswhohaswhat
https://www.ucs.org/nuclear-weapons/worldwide#:~:text=Nine%20countries%20possess%20nuclear%20weapons,to%20humanity%20these%20weapons%20represent.
https://www.youtube.com/watch?v=d558tMKjvgc
There are currently 9 nuclear powers – the US (since 1945), the Russian
Federation (1949), the UK (1952), France (1960), China (1964), Israel (1967?),
which now also has a submarine with nuclear arms and thus a second-strike
capability (2003), India (1974), Pakistan (declared 1998, probably developed
from the 1970s) and North Korea (2003). Apartheid South Africa had them and
then eliminated them (1982-94). Canada deploys US missiles but has no
independent control of them. Germany, Italy, Holland and Belgium and Turkey
have US nuclear bases and are part of NATO's nuclear sharing
policy, which means they take common decisions with
the US on nuclear weapons policy and maintain technical equipment required for
the use of nuclear weapons.
https://en.wikipedia.org/wiki/Nuclear_sharing
https://www.icanw.org/italy
Belarus, Kazakhstan and Ukraine had them after the break-up of the
Soviet Union but returned them to the Russians almost immediately.
The Nuclear
Non-Proliferation Treaty (1968) came into force in 1970. There was also the
Partial Nuclear Test Ban Treaty (1963) and the Comprehensive Nuclear Test Ban
Treaty (1998). And there is the Treaty on the Prohibition of Nuclear Weapons
(TPNW 2017) but as of September 2025, only 74 states have ratified or acceded
to the treaty.
https://en.wikipedia.org/wiki/Treaty_on_the_Prohibition_of_Nuclear_Weapons
There are treaties concerning other potential or existing Weapons of
Mass Destruction (WMDs). These include the banning of Chemical weapons (1992),
Biological weapons (1971) and Weapons in Outer Space (1967).
The
Vienna-based International Atomic Energy Agency (IAEA) is responsible for monitoring the development of nuclear power
for peaceful purposes (the production of energy for domestic and
industrial consumption) and ensuring that nuclear materials and equipment are
safe and not diverted from legitimate peaceful purposes to military
purposes. (There is a similar Agency in the Hague for chemical products
and the potential for producing chemical weapons.) There is an ongoing dispute
with Iran about whether it has developed nuclear power for purely peaceful
purposes or intends to develop nuclear weapons. There was a nuclear deal
between the UN and Iran (July 2015) and the lifting of sanctions, but the US
withdrew from the deal (May 2018) and reimposed sanctions. It bombed
Itan’faccilities in the summer of 2025 and as of February 2026 is in
negotiation with Iran. Here is the background
https://www.cfr.org/backgrounder/what-iran-nuclear-deal
https://en.wikipedia.org/wiki/Joint_Comprehensive_Plan_of_Action#:~:text=The%20United%20States%20withdrew%20from,nuclear%20deal's%20economic%20provisions%20null.
https://en.wikipedia.org/wiki/United_States_withdrawal_from_the_Joint_Comprehensive_Plan_of_Action
https://iranprimer.usip.org/blog/2021/mar/03/sanctions-5-trumps-maximum-pressure-targets
There were
then calls for the revival of the deal or a renegotiated agreement.
https://www.armscontrol.org/act/2022-10/news/delay-risks-effort-restore-iran-deal
https://www.politico.com/news/2024/04/18/joe-biden-iran-sanctions-israel-00153007
https://www.stimson.org/2024/the-outlook-for-iran-nuclear-negotiations/
https://www.armscontrol.org/act/2024-10/news/iranian-president-opens-door-new-nuclear-talks
https://commonslibrary.parliament.uk/research-briefings/cbp-9870/
https://www.consilium.europa.eu/en/policies/sanctions-against-iran/
https://www.consilium.europa.eu/en/policies/sanctions-against-iran/#nuclear-proliferation
for the current situation (2026) see the notes
on Iran at the top of this post
Nuclear weapons and the current dangers of nuclear proliferation and an
escalation of a conflict into nuclear war
With rising tensions between the US and Russia, the US withdrew from the Intermediate-Range
Nuclear Forces Treaty in 2019 saying that Russia had not complied with it. The
New START Treaty (on Measures for the Further
Reduction and Limitation of Strategic Offensive Arms) was extended in 2021 but Russia’s suspended its
participation in the treaty in 2023 and later withdrew from the Nuclear
Test Ban Treaty. The New START agreement expired in
February 2026 with growing fears of a new nuclear arms race.
https://www.armscontrol.org/pressroom/2026-02/joint-statement-high-ranking-former-officials-and-nuclear-experts-across-globe
Nuclear weapons are clearly expensive to develop, build, maintain and
update. How dangerous do they make the world? Are they weapons that are likely
to be used? Hopefully not, if we mean whether states really intend to use them one day, although the tensions and nuclear
rhetoric between the US and Russia recently is alarming.
https://www.france24.com/en/europe/20240927-vladimir-putin-nuclear-weapons-declaration-more-than-an-empty-threat-ukraine-nato-us-war
https://www.armscontrol.org/act/2024-06/focus/russias-war-and-specter-nuclear-conflict
https://www.theguardian.com/world/article/2024/jun/17/row-as-nato-chief-hints-at-talks-to-increase-availability-of-nuclear-weapons
With the expiry of the New START Treaty there is the real danger of
increased competition and a new arms race between the US and Russia (and China)
regarding the development of new weapons technologies and deployment of
tactical (battlefield) nuclear weapons (and the temptation to use them). There is
also growing concern that various other countries may try to develop weapons. Would an Iran with nuclear weapons end up in
a nuclear war with Israel? There is, in the case of India and Pakistan (as in
the case of the US and USSR during the Cuban crisis), the danger of escalation
from a conventional conflict to a nuclear war in the Kashmir region. Moreover,
there is always the danger of an accident due to a technological or human
error, and the threat of a decision taken by a madman or madmen. In addition,
poorer countries developing nuclear weapons may spend too little on maintenance
and security systems (e.g. not funding the
2-key launch system or Russia's security failures during and after the collapse
of the Warsaw Pact and Soviet Union, 1989-91). Other experts claim that a new
arms race combined with the abandoning of international treaties and greater
automation and digital complexity of nuclear-arsenals makes the world less and
less secure.
https://www.theguardian.com/commentisfree/2026/feb/08/nuclear-war-risk-rising-global-peace
https://www.icanw.org/catastrophic_harm
https://armscontrolcenter.org/are-nuclear-armed-nations-entering-a-new-arms-race-in-2024-experts-weigh-in/
https://www.scientificamerican.com/article/the-u-s-s-plans-to-modernize-nuclear-weapons-are-dangerous-and-unnecessary/
https://www.economist.com/international/2023/08/29/a-new-nuclear-arms-race-looms
So there is
a good argument for trying to abolish them completely.
https://en.wikipedia.org/wiki/International_Campaign_to_Abolish_Nuclear_Weapons
or at least
relauch nuclear arms control talks
https://abcnews.go.com/International/wireStory/russia-us-discussed-nuclear-arms-agreed-talks-start-129910686
https://www.armscontrol.org/act/2024-04/focus/breaking-impasse-disarmament-part-one
https://www.armscontrol.org/act/2024-05/focus/breaking-impasse-nuclear-disarmament-part-two
https://www.armscontrol.org/sites/default/files/files/documents/Breaking%20the%20Impasse%20on%20Disarmament%20and%20Implementing%20Article%20VI%20Obligations.pdf
However, an
attack by a nuclear power on another nuclear power, or the ally of a nuclear
power, would be suicidal (the Mutually Assured Destruction
deterrence doctrine of the Cold War). For example, an attack by a future Iran,
hypothetically in possession of nuclear weapons, could destroy Israel (but
probably most of the Palestinians too along with their longed-for homeland) but
Israel would retaliate and destroy Iran. An attack on a non-nuclear power (e.g.
North Korea on South Korea). Would
likely lead to international isolation, if not a coordinated counter-attack
from the global community or other nuclear powers.
However,
another real danger is that nuclear weapons or materials could fall into the
hands of terrorists or be targeted by terrorist attacks (in Pakistan, for
instance) or conventional attacks.
https://en.wikipedia.org/wiki/Nuclear_Terrorism_Convention
There is
also the question of what would happen to the nuclear weapons in the event of a
civil war in a state which has nuclear arms. This is a real danger in Pakistan
and was one of the major international concerns during the break-up of the
Soviet Union. The development of nuclear weapons is also related to the
development of nuclear delivery systems (planes, short-range, long-range and
intercontinental ballistic missiles – ICBMs) and the international community is
involved in monitoring this situation, particularly regarding developments in
this sector in Iran and North Korea.
Some arguments in favour of
keeping nuclear arms (the Devil’s advocate!)
(1)
Fear of these weapons, more than the existence of the UN, have prevented a
Third World War for more than 80 years. There have been many conventional conflicts,
but none of them have been global. Without nuclear arms the US and USSR might
have gone to war at some point during the Cold War. So, their elimination might
actually lead to more wars and make a general global conflict more
likely. They have only been used once, by the US on Japan, to end a war,
not to start one. This seems a strong argument.
(2)
No conventional war since 1945 has ever actually escalated into a nuclear war.
(3)
Reductions in or the elimination of these weapons must be coordinated with strict
controls and on-site checks to ensure the ban on other types of WMDs, or
countries will invest in those alternative weapons and the real danger to the
world may be increased, e.g. a race to develop and build biological or chemical
weapons.
(4)
If major powers reduce the number of nuclear weapons they have, then they will
probably massively increase their spending on conventional weapons
to compensate for this. Some historians argue that World War I demonstrated
that a build-up of conventional weapons can lead to growing tensions and war.
(5)
Nuclear weapons guarantee a country against nuclear attack. So far this has
been true.
(6)
Nuclear weapons guarantee a country and a country’s allies against conventional
attacks or invasion. This is not true. Argentina invaded the Falklands,
confident that Britain would not respond with nuclear weapons. North Vietnam
and the Viet Cong defeated the South Vietnamese government and US forces.
Afghan rebels fought and defeated the Russians and the Russian-backed Afghan
government, and more recently the US and its allies also lost their war in
Afghanistan and the US-backed Afghan government fell. Neither the Vietnamese,
nor the Afghans rebels were intimidated by the strength of the US and USSR as
nuclear powers. Ukraine also seems much more worried about Russia’s
conventional forces than a nuclear strike.
(7)
Some supporters of banning nuclear weapons argue that they can used be
effectively to intimidate or threaten a non-nuclear country. This does not
really seem to be true. Only North Korea has tried to use this tactic, against
South Korea, and largely without success. The US, the USSR (Russia today),
France, Britain, China, India, Pakistan – none of them has ever done
this directly. Israel does not admit publicly that it has nuclear weapons
and has fought a series of conventional wars with its neighbours. It has never
threatened the use of nuclear weapons. It has threatened conventional
bombing of Iranian nuclear research and development facilities if the Iranians
continue with their program. Even President Putin’s government has so far
refrained from direct threats, raising Russia’s nuclear readiness status as
part of its defensive stance and underlining the risks of the war in Ukraine
escalating and becoming a nuclear conflict, using nuclear rhetoric and setting
red-lines but not directly threatening a nuclear first-strike attack on Ukraine
or other European countries to halt the war.
https://esthinktank.com/2025/03/03/russias-shifting-red-lines-nuclear-brinkmanship-strategic-ambiguity-and-the-credibility-of-deterrence-in-ukraine/
However, this kind of brinkmanship is
clearly dangerous.
(8)
Prestige – This is a much-quoted but probably mistaken idea. A country or
government may, of course, believe that it will acquire status and
prestige by developing nuclear weapons but this is probably an illusion as the
following considerations suggest. Have North Korea and Pakistan really
acquired international prestige or become regional leaders? Don’t Germany,
Japan and Brazil have considerably more prestige because of their economic
importance? Did China and India gain prestige internationally when they
acquired nuclear weapons or when their economies expanded to their current
levels? Does the prestige of the EU in international relations depend on French
nuclear weapons (or NATO forces and US weapons) or on its economic importance
as a single developed market, democratic traditions and cultural influence? Do
the Arabs respect Israel more because it has nuclear weapons?
(9)
Nuclear technology is old, no longer complex (with the right fissile material
you could built one at a US university physics department) and you cannot turn
the clock backwards. You cannot get rid of knowledge. So, should we try to
eliminate them completely, or try to reduce their numbers to a minimum, improve
their safety, prevent their proliferation where possible, but accept that they
are here to stay?
http://www.boell.de/intlpolitics/security/foreign-affairs-security-global-zero-nuclear-weapons-conference-8755.html
http://en.wikipedia.org/wiki/Nuclear_proliferation
http://en.wikipedia.org/wiki/Nuclear_weapon
http://en.wikipedia.org/wiki/List_of_states_with_nuclear_weapons
http://en.wikipedia.org/wiki/Nuclear_proliferation
http://www.globalissues.org/issue/67/nuclear-weapons
http://en.wikipedia.org/wiki/Nuclear_Non-Proliferation_Treaty
http://www.wagingpeace.org/articles/1997/00/00_babst_consequences.php
Treaty on the Prohibition of
Nuclear Weapons
https://news.un.org/en/story/2017/09/565582-treaty-banning-nuclear-weapons-opens-signature-un#.Wmt-XLynFdg
https://en.wikipedia.org/wiki/Treaty_on_the_Prohibition_of_Nuclear_Weapons
2017 (as of September 2025, only 74 states have ratified or acceded to the treaty)
Nuclear
technology for the peaceful production of energy
What is
nuclear power?
https://education.nationalgeographic.org/resource/nuclear-energy/
https://www.iaea.org/newscenter/news/what-is-nuclear-energy-the-science-of-nuclear-power
http://en.wikipedia.org/wiki/Nuclear_power
The first commercial nuclear power stations started operation in the
1950s.
Nuclear power
generation is an established part of the world's electricity mix providing
about 10% of world electricity from about 440 power
reactors. It is especially suitable for meeting large-scale,
continuous electricity demand where reliability and predictability are vital –
hence ideally matched to increasing urbanization worldwide.
Almost all reports
on future energy supply from major organizations suggest an increasing role for
nuclear power as an environmentally benign way of producing reliable
electricity on a large scale.
Nuclear
provides about one-quarter of the world’s low-carbon (green) electricity.
Nuclear
is the world's second largest source of low-carbon power (after
hydroelectric).
Over
50 countries utilize nuclear energy in about 220 research reactors. In addition
to research, these reactors are used for the production of medical and
industrial isotopes, as well as for training.
From:
https://world-nuclear.org/information-library/current-and-future-generation/world-energy-needs-and-nuclear-power#:~:text=Nuclear%20power%20for%20electricity%20in,the%20Outlook%20for%20Nuclear%20Power.
In
response to climate change, many nations and the IAEA see nuclear energy as a
‘reliable’ option and a way to achieve climate targets, at least in the short
term.
https://www.ans.org/news/article-6513/new-edition-of-iaeas-iclimate-change-and-nuclear-powermi-available/
https://www.voanews.com/a/nations-pledge-to-boost-nuclear-power-to-fight-climate-change/7537385.html
https://www.weforum.org/agenda/2024/01/nuclear-energy-transistion-climate-change/
https://www.worldnuclearreport.org/reactors.html#tab=iso
https://www.ans.org/news/article-6513/new-edition-of-iaeas-iclimate-change-and-nuclear-powermi-available/
https://world-nuclear.org/information-library/current-and-future-generation/plans-for-new-reactors-worldwide
https://www.theguardian.com/environment/2024/jan/24/nuclear-power-output-expected-to-break-global-records-in-2025
Current use:
https://en.wikipedia.org/wiki/Nuclear_power_by_country
https://www.eia.gov/energyexplained/nuclear/nuclear-power-plants.php#:~:text=Nuclear%20power%20plants%20have%20generated,power%20plants%20in%2028%20states.
And by country
https://world-nuclear.org/information-library/country-profiles
2026
France has 57
nuclear reactors, producing 70% of its electrical power, the highest percentage
in the world. (2026)
https://world-nuclear.org/information-library/country-profiles/countries-a-f/france.aspx
http://en.wikipedia.org/wiki/Nuclear_power_in_France
http://www.world-nuclear.org/information-library/country-profiles/countries-a-f/france.aspx
Nuclear power was used in Germany from the 1960s until it was phased out in
April 2023.
https://en.wikipedia.org/wiki/Nuclear_power_in_Germany
https://www.cleanenergywire.org/factsheets/qa-germanys-nuclear-exit-one-year-after
The USA has 94
nuclear reactors, producing 18% of its electrical power (accounting for about 30% of worldwide generation of nuclear
electricity). (2026)
https://world-nuclear.org/information-library/country-profiles/countries-t-z/usa-nuclear-power#:~:text=The%20USA%20is%20the%20world's,20%2C017%20MWe
https://www.npr.org/2026/01/28/nx-s1-5677187/nuclear-safety-rules-rewritten-trump
Japan’s first commercial nuclear power reactor began operating in
mid-1966, and nuclear energy has been a national strategic priority since 1973.
This came under review following the 2011 Fukushima accident but has been
confirmed.
Up until 2011, Japan was generating some 30% of electricity from its
reactors and this was expected to increase to at least 40% by 2017. The plan is
now for at least 20% by 2030, from a depleted fleet.
15 reactors have restarted. 10 reactors are currently in the
process of restart approval.
https://world-nuclear.org/information-library/country-profiles/countries-g-n/japan-nuclear-power
https://en.wikipedia.org/wiki/Fukushima_nuclear_accident
https://it.wikipedia.org/wiki/Incidente_nucleare_di_Fukushima_Dai-ichi
The UK generates about 15% of its electrical
power, using 9 nuclear reactors with 2 under construction. (2026)
https://world-nuclear.org/information-library/country-profiles/countries-t-z/united-kingdom
For the
history and current situation in Italy see:
http://en.wikipedia.org/wiki/Nuclear_power_in_Italy
China
has 58 nuclear reactors
with 33 more under
construction, producing about 4% of its electrical power (2025).
https://cnpp.iaea.org/public/countries/CN/profile/highlights
https://world-nuclear.org/nuclear-reactor-database/summary/China
South
Korea has 26 nuclear reactors with
2 more under construction, producing 32% of its electrical power (2026).
https://world-nuclear.org/nuclear-reactor-database/summary/South%20Korea
https://world-nuclear.org/our-association/publications/world-nuclear-outlook-report/south-korea---world-nuclear-outlook-report#:~:text=South%20Korea%20has%2026%20operable,of%20SMR%20capacity%20by%202038.
https://world-nuclear.org/information-library/country-profiles/countries-o-s/south-korea
The Russian
Federation currently has 34 operable reactors, producing
19% of its electrical power, and 6 under construction (2026).
https://world-nuclear.org/information-library/country-profiles/countries-o-s/russia-nuclear-power
https://world-nuclear.org/nuclear-reactor-database/summary/Russia
The
Chernobyl disaster was a nuclear accident that occurred in April 1986 at the Chernobyl Nuclear Power Plant in Ukraine, which was
under the direct jurisdiction of the central authorities in Moscow. An
explosion and fire released large quantities of radioactive material into the
atmosphere. It is widely considered to have been the worst nuclear power plant accident in history. Highly
radioactive fallout
entered and contaminated the atmosphere and drifted over large parts of the
western Soviet Union and Europe
(large parts of Germany were covered with radioactive contamination). From 1986
to 2000, 350,400 people were evacuated and resettled from the most severely
contaminated areas of Belarus, Russia, and Ukraine. According to official post-Soviet data about 60% of
the fallout landed in Belarus. The
accident raised concerns about the safety of Russian nuclear technology, as well as the dangers
of nuclear power plant engineering in general and human error. Russia, Ukraine,
and Belarus have been burdened with the continuing and substantial decontamination and health care costs of the Chernobyl accident.
According to a report by the International Atomic Energy Agency estimates of
the number of deaths potentially resulting from the accident vary enormously: Thirty one deaths are directly attributed to the
accident, all among the reactor staff and emergency workers. An UNSCEAR report
places the total confirmed deaths from radiation at 64 as of 2008. The World Health Organization (WHO) estimates that the death toll
could reach 4,000 civilian deaths, a figure which does not include military
clean-up worker casualties. The Union of Concerned Scientists estimate
that for the broader population there will be 50,000 excess cancer cases
resulting in 25,000 excess cancer deaths. The 2006 TORCH report predicted 30,000 to 60,000 cancer deaths as a result
of Chernobyl fallout. A Greenpeace report puts this figure at 200,000 or more. A Russian
publication, Chernobyl, concludes that 985,000 premature
cancer deaths occurred worldwide between 1986 and 2004 as a result of
radioactive contamination from Chernobyl.
http://en.wikipedia.org/wiki/Chernobyl_disaster
As of January 2018, 1.8 million people in Ukraine,
including 377,589 children, had the status of victims of the disaster.
https://www.bbc.com/future/article/20190725-will-we-ever-know-chernobyls-true-death-toll
https://inis.iaea.org/records/ws43c-mzs52#:~:text=If%20the%20fatalities%20of%20liquidators,to%2050%2C000%20to%2090%2C000%20people.
https://en.wikipedia.org/wiki/Deaths_due_to_the_Chernobyl_disaster
To return to
the events following the failure of cooling systems at the Fukushima Daiichi I Nuclear Power Plant in Japan on
March 11, 2011, these demonstrate that even with great advances in the
safety of nuclear technology, exceptional events (in this case an
earthquake and a tsunami) make 100% safety impossible and raise questions about
the industry’s confident claims to operate within acceptable margins of safety.
Japan was torn between its fears of another accident and desire to decommission
existing nuclear power plants and its needs to produce ‘clean energy’ under the
Paris Climate Change agreement and thus to allow restarts at sites which are
currently closed to increase the ‘nuclear’ share of electricity production back
up to 20%.
http://en.wikipedia.org/wiki/Fukushima_Daiichi_Nuclear_Power_Plant
http://abcnews.go.com/topics/news/fukushima-nuclear-power-plant.htm
http://fukushimaupdate.com/
https://en.wikipedia.org/wiki/Nuclear_power_in_Japan
Some
countries had already decided not to use or to phase out nuclear power and
there is an ongoing debate about the pros and cons
http://en.wikipedia.org/wiki/Nuclear_power_phase-out
Emerging nuclear energy countries (updated October2023). However, there are about 30 countries which are considering, planning or starting
nuclear power programs
https://world-nuclear.org/information-library/country-profiles/others/emerging-nuclear-energy-countries.aspx
The
production of nuclear energy produces radioactive waste materials that need
to be stored on a long-term basis (for decades). The French nuclear power
industry’s claims that a very high percentage of this material can be recycled
is widely disputed. Moreover, this is not what is happening in most countries
at the moment. So this material also represents a threat to life. For example, some
experts argue that in the US alone, 80 years after the Manhattan project began,
there are now 94 nuclear reactors and 90,000 metric tons of nuclear waste (the
product of both the commercial and defence nuclear reactors) at 100 sites in 35
states in temporary(!) storage facilities with no permanent storage
arrangements. The U.S. has no permanent nuclear
waste disposal plan. So this is another hot debate.
https://energyathaas.wordpress.com/2026/01/12/this-nuclear-renaissance-has-a-waste-management-problem/#:~:text=Across%20the%20country%2C%20more%20than,permanent%20nuclear%20waste%20disposal%20plan
https://earth.org/nuclear-waste-recycling-realistic-pursuit-or-delusion/#:~:text=But%20there%20is%20a%20problem,%2C%20economic%20viability%2C%20and%20safety.
https://www.gao.gov/nuclear-waste-disposal
https://podcasts.apple.com/at/podcast/theres-90-000-tons-of-nuclear-waste-in-the-us-how/id1842715051?i=1000738940275
https://world-nuclear.org/information-library/nuclear-fuel-cycle/nuclear-waste/radioactive-waste-management#:~:text=Nuclear%20waste%20is%20neither%20particularly,disposal%20is%20the%20best%20option.
https://www.orano.group/en/unpacking-nuclear/all-about-radioactive-waste-in-france#:~:text=Following%20recycling%20operations%2C%2096%25%20of,La%20Hague%20site%2C%20pending%20disposal.
https://www.sciencenews.org/article/supreme-court-nuclear-waste-storage#:~:text=The%20nuclear%20waste%20impasse,of%20Michigan%20in%20Ann%20Arbor.
https://www.scientificamerican.com/article/nuclear-waste-is-piling-up-does-the-u-s-have-a-plan/#:~:text=The%20U.S.%2C%20which%20led%20the,appropriations%20and%20restrictive%20budgetary%20rules.
Those who
argue that nuclear energy is cheap often ignore the fact that any eventual
solution that is found for the storage or disposal of this waste is liable to
be expensive and needs to included in calculating the real cost of producing
such energy.
http://www.world-nuclear.org/information-library/nuclear-fuel-cycle/fuel-recycling/processing-of-used-nuclear-fuel.aspx
https://en.wikipedia.org/wiki/High-level_radioactive_waste_management
http://www.nytimes.com/cwire/2009/05/18/18climatewire-is-the-solution-to-the-us-nuclear-waste-prob-12208.html?pagewanted=all
http://www.prnewswire.com/news-releases/ieer-french-style-nuclear-reprocessing-will-not-solve-us-nuclear-waste-problems-90233522.html
http://spectrum.ieee.org/energy/nuclear/nuclear-wasteland
http://www.guardian.co.uk/science/blog/2011/apr/04/fear-nuclear-power-fukushima-risks
https://www.belfercenter.org/publication/economics-reprocessing-vs-direct-disposal-spent-nuclear-fuel#:~:text=At%20a%20uranium%20price%20of,plutonium%20fuels%20in%20existing%20reactors.
https://www.reuters.com/business/energy/french-nuclear-waste-project-cost-up-42-billion-says-agency-2025-05-12/#:~:text=Reuters%20Plus-,French%20nuclear%20waste%20project%20to%20cost%20up%20to%20$42%20billion,waste%20agency%2C%20known%20as%20Andra.
https://world-nuclear.org/information-library/economic-aspects/economics-of-nuclear-power
The argument
for maintaining the existing power plants and building new ones, at least in
the short term, is that fossil fuel alternatives are limited and global prices
always remain volatile subject to many factors, while alternative clean
renewable energy sources are still not sufficiently developed and cannot offer adequate supplies at the moment.
Opponents argue that renewable, green energy sources are becoming competitive
and that, anyway, this argument only underlines the need for greater investment
in renewables in order to produce a technological revolution and lower costs
dramatically. Supporters of nuclear power also argue that the two major
accidents which happened were in Soviet Russia, using poor technology and under
a government system that was well-known for its inefficiency, and in Japan, in
an area where a nuclear power plant should never have been built because of
seismic risks. Moreover, advocates of nuclear energy claim that more people
die, directly or indirectly, in the coal-mining industry and oil industry than
die in the nuclear industry and statistics from the International Energy Agency
seem to confirm this:
https://www.newscientist.com/article/mg20928053-600-fossil-fuels-are-far-deadlier-than-nuclear-power/
However,
there are several arguments for closing nuclear power stations. First, there is
the danger of an accident like the ones described above. Moreover, in Europe
the EU (and other European nations (e.g. Switzerland, the UK) clearly needs to
adopt a common policy since the effects of an accident in France could
easily spread to Italy, Spain, the UK, Belgium, Switzerland and Germany.
Secondly, closing them will force countries to invest heavily and rapidly in
alternative renewable energy sources. Thirdly, they are potentially vulnerable
targets for terrorists, e.g. an attack on a nuclear facility could lead to a
nuclear disaster (e.g. by using a plane), or a raid to acquire nuclear
materials or waste (or simply the purchase of these materials from corrupt
officials) for the construction of a ‘dirty’ (or ‘suitcase’) bomb for a
terrorist attack, using conventional explosives to release radioactive material
into the atmosphere). The fewer the nuclear plants the less nuclear material
there is to protect.
http://www.nci.org/nci-nt.htm
https://en.wikipedia.org/wiki/Nuclear_terrorism#:~:text=Nuclear%20terrorism%20could%20include%3A,submarine%2C%20plane%2C%20or%20base.
https://www.iaea.org/topics/security-of-nuclear-and-other-radioactive-material
These
nuclear power plants can also become targets (even unintended ones) in conflict
zones like Ukraine.
https://press.un.org/en/2024/ga12645.doc.htm
The
International Atomic Energy Agency (IAEA) is the international organization
which is responsible for promoting the peaceful use
of nuclear energy, and trying to prevent its development
and use for any military purpose, including nuclear weapons. The IAEA was established as an
autonomous organization in 1957 but reports to both the UN General Assembly and Security
Council. However, the IAEA faces growing challenges, given that there isn’t
always a simple clear line between developing nuclear energy for purely
peaceful purposes and nuclear energy also for military purposes until the final
stages (‘nuclear latency’). So, preventing the proliferation of nuclear weapons
(and moving towards nuclear disarmament) in a world in which nuclear energy is
widely used for energy production is becoming an extremely difficult task.
Moreover
developments in AI and particularly AI for cyber-attacks and sabotage
complicates the situation even further and increase the risks to security.
https://www.iaea.org/events/cybercon26#:~:text=The%20rapid%20pace%20of%20digital,for%20people%20and%20the%20environment.
https://www.iaea.org/newscenter/pressreleases/update-339-iaea-director-general-statement-on-situation-in-ukraine#:~:text=Situation%20in%20Ukraine-,Update%20339%20%E2%80%93%20IAEA%20Director%20General%20Statement%20on%20Situation%20in%20Ukraine,%2C%E2%80%9D%20Director%20General%20Grossi%20said.
Key 2026 Nuclear Security Challenges & The
Civilian-Military Nexus
Ukraine War and Nuclear Safety: The ongoing war in Ukraine remains the most
significant threat to nuclear safety, with IAEA teams in early 2026 reporting
"significant" impact on plant operations due to military activity
damaging the electrical grid. This situation highlights how civilian
infrastructure can become directly embroiled in military conflict, forcing the
IAEA to operate in a high-stakes, gray-zone environment.
Nuclear Latency and Proliferation: In 2026, the global non-proliferation regime is facing
pressure, with concerns that more countries might move closer to weaponization.
The civilian-military distinction is often blurred by "nuclear
latency"—the ability of a state to leverage its advanced civil nuclear
program (using fuel and byproducts) to develop nuclear weapons. Iran remains a
central focus for the IAEA regarding compliance with, or potential exit from,
the Non-Proliferation Treaty (NPT).
Small Modular Reactors (SMRs) and Security: As over 80 SMR designs move toward deployment, the
IAEA is focusing on securing their digital technologies. The need to exchange
information in these systems creates potential pathways for cybercriminals,
requiring robust, integrated cybersecurity to prevent malicious acts.
Cyber Warfare and Dual-Use Technology: The IAEA's CyberCon26 conference (May
2026) highlights the intersection of cybersecurity and safety. New technologies
like AI and advanced digital instrumentation, while improving performance,
create risks if military, intelligence, or terrorist actors target these systems.
International Legal Frameworks: The IAEA is reinforcing that attacking nuclear
facilities, which are for peaceful purposes, violates international
humanitarian law. In 2026, the Agency is continuing to update its security
recommendations for transporting radioactive material to ensure the "thin
line" is not exploited by malicious actors.
IAEA Response and Strategy for 2026
The IAEA is adapting to these challenges by focusing on:
Enhanced Safeguards: Intensifying
inspections to ensure civilian nuclear material is not diverted.
Digital Security Standards: Releasing guidelines for securing advanced digital
instrumentation in nuclear plants.
Increased Vigilance: Strengthening
technical capabilities to monitor potential military uses of nuclear
technology, especially in regions with high geopolitical instability.
Addressing Nuclear Security: Establishing programs to ensure the
"trustworthiness" of personnel and systems in the nuclear sector.
https://en.wikipedia.org/wiki/Nuclear_latency#:~:text=Nuclear%20latency%20or%20a%20nuclear,Nuclear%20Complex%20in%20Arak%2C%20Iran.
https://digitalcommons.ndu.edu/wmd-proceedings/7/#:~:text=Description,the%20global%20nuclear%20nonproliferation%20regime.
https://www.justsecurity.org/130607/emerging-trends-nuclear-2026/#:~:text=At%20the%20same%20time%2C%20the,circumscribe%20the%20technologies%20under%20consideration.
https://www.justsecurity.org/129480/risk-nuclear-proliferation-2026/#:~:text=With%20the%20risks%20of%20new,technical%20barriers%20to%20proliferation%20erode.
Nuclear Weapons 1945-2023

The following estimates from the Federation of American Scientists, September
2020.

The US and
the Russian Federation made large reductions in their nuclear arsenals through
a negotiation process which began with the START 1 treaty in 1991 (also START
2, 1993, START 3 negotiations and SORT, 2003) and say they are committed to
continuing this process (the New START treaty was ratified in January 2011). From a high
of 65,000 active weapons in 1985, there were estimated to be some 4,120 active
nuclear warheads and some 14,930 total nuclear warheads in the world in
January 2021.
https://www.statista.com/statistics/264435/number-of-nuclear-warheads-worldwide/
The US
reduced from 32,000 (active and stockpiled) at the highest point in 1966 to 1,800
(active warheads) and 5, 550 (total inventory including reserves and
stockpiles)
The Russian
Federation reduced from 45,000 (active and stockpiled by the USSR) at the
highest point in 1988 to 1,950 (active) and 6,255(total inventory).
https://en.wikipedia.org/wiki/Historical_nuclear_weapons_stockpiles_and_nuclear_tests_by_country#/media/File:US_and_USSR_nuclear_stockpiles.svg
https://fas.org/issues/nuclear-weapons/status-world-nuclear-forces/
Current situation
For the latest estimated global nuclear warheads inventories 2026 and
most up-to-date charts and data, go to:
https://fas.org/initiative/status-world-nuclear-forces/
https://www.statista.com/statistics/264435/number-of-nuclear-warheads-worldwide/
Moreover, the US is in the process
of developing new nuclear weapons systems and China and Russia are probably
doing the same (with the danger that other countries will follow), putting the
world at risk of a new nuclear arms race.
https://www.sipri.org/media/press-release/2025/nuclear-risks-grow-new-arms-race-looms-new-sipri-yearbook-out-now
https://www.nbcnews.com/world/russia/nuclear-arms-race-start-treaty-expires-russia-china-trump-putin-xi-rcna257012
https://www.cfr.org/articles/nukes-without-limits-a-new-era-after-the-end-of-new-start
https://nuclearnetwork.csis.org/three-truths-about-the-end-of-new-start-and-what-it-means-for-strategic-competition/
More background to
the current situation (optional reading)
http://en.wikipedia.org/wiki/Nuclear_disarmament
http://en.wikipedia.org/wiki/Nuclear_weapon
http://newsoffice.mit.edu/2014/rose-gottenmoeller-america-russia-nuclear-security-1024
http://www.icanw.org/the-facts/nuclear-arsenals/
So
globally, the number of nuclear weapons declined significantly, but the
reduction process has halted. The United States, Russia, and the United Kingdom
reduced their overall warhead inventories, France and Israel have
relatively stable inventories, while China, Pakistan, India, and North
Korea have increased their warhead inventories. Moreover, all the nuclear weapon states continue to
modernize their remaining nuclear forces, developing and adding new types and
appear committed to retaining nuclear weapons for the indefinite future. In
particular, the US, Russia and China
are rapidly updating both their weapons and delivery systems
The exact number and type of nuclear weapons in a country’s possession
is a closely held national secret. Yet the degree of secrecy varies
considerably from country to count. Between 2010 and 2018, the United States disclosed
its total stockpile size, but in 2019 the Trump administration stopped that practice. Biden disclosed the figures again during
his term. Despite such limitations, however, publicly available information,
careful analysis of historical records, and occasional leaks make it possible
to make best estimates about the size and composition of the national nuclear
weapon stockpiles.
“Since 1991, the United States [claims that it] has
destroyed about 90 percent of its non-strategic nuclear weapons and devalued
them in its military posture. However, the Obama administration reaffirmed the
importance of retaining some non-strategic nuclear weapons to extend a nuclear
deterrent to allies. And the U.S. Congress has made further reductions in U.S.
nuclear weapons conditioned on reducing the “disparity” in Russian
non-strategic nuclear forces.
Russia says it has destroyed 75
percent of its Cold War stockpile of non-strategic nuclear weapons, but insists
that at least some of the remaining weapons are needed to counter NATO’s
conventional superiority and to defend its border with China. Following a
meeting of the NATO-Russia Council on April 19, 2012, Russian Foreign Minister
Sergey Lavrov stated: “Unlike Russian non-strategic nuclear weapons, U.S.
weapons are deployed outside the country,” and added that “before talks on the
matter could begin, the positions of both sides should be considered on an
equal basis.”
from: http://www.fas.org/_docs/Non_Strategic_Nuclear_Weapons.pdf
The US
withdrew from the ABM Treaty (1972) in 2002 (which banned the development of a
missile defence system).
http://www.nytimes.com/2001/12/13/international/bush-pulls-out-of-abm-treaty-putin-calls-move-a-mistake.html
At the November 2010 NATO Summit in
Lisbon, NATO’s leaders decided to develop a ballistic missile defence (BMD) capability to pursue its core task of
collective defence and specifically against an attack with missiles. Despite NATO’s
initial attempts to reach agreement with the Russian Federation, Russia has
made its opposition to the plan clear. (Moreover, many technical experts doubt
that such a system will ever be 100% effective, which is the only level of
safety worth having if the missiles have nuclear warheads.) This and the
situation in Ukraine raised tensions with Russia and ended the prospects for
further cooperation between the US and Russia on nuclear arms reductions.
http://www.nationaldefensemagazine.org/articles/2017/7/31/nato-missile-defense-systems-strive-for-interoperability
https://armscontrol.org/act/2013-11/missile-defense-against-iran-without-threatening-russia https://www.nato.int/cps/en/natohq/news_176392.htm https://www.armscontrol.org/act/2016-05/news/romania-missile-defense-site-activated
In
August 2019 under President Donald Trump the US withdrew from the 1987
Intermediate-Range Nuclear Forces (INF) treaty claiming that Russia had
violated it. The deal banned ground-launched
medium-range missiles, with a range of between 500 and 5,500km (310-3,400
miles. e.g. Moscow to Paris). There were concerns that without a new
understanding between the US and Russia we would see the unravelling of all the
progress made in the last 25 years and a new nuclear arms race.
Without agreement on an extension the New Strategic Arms
Reduction Treaty (New
Start) would have expired on 5 February 2021. In the same month the
Biden administration agreed with Russia to extend the New START Treaty for 5
years and to undertake comprehensive arms control and reduction talks. This was
greeted by the international community with enthusiasm.
https://www.armscontrol.org/blog/2021-02/us-russian-nuclear-arms-control-watch
https://www.state.gov/on-the-extension-of-the-new-start-treaty-with-the-russian-federation/
https://ru.usembassy.gov/new-start-treaty-mythbusters/
https://www.dw.com/en/us-russia-agree-to-extend-new-start-nuclear-arms-treaty/a-56354318
https://www.armscontrol.org/act/2021-05/focus/back-brink-next-steps-biden-putin
https://foreignpolicy.com/2021/06/22/biden-putin-russia-arms-control-new-start/
https://www.armscontrol.org/act/2021-12/news-briefs/russia-us-adhere-new-start-limits
but the treaty would need to be expanded
to include new technologies to be effective
https://sgp.fas.org/crs/nuke/IN11520.pdf
https://carnegieendowment.org/2021/01/25/extending-new-start-should-be-just-beginning-pub-83699
Worsening
relations between the US, NATO and the Russian Federation (due to events in
Ukraine, sanctions, the NATO missile defense system and the US suspension of
the Intermediate-Range Nuclear Forces Treaty)
made further negotiations and progress on further reductions more difficult and
more unlikely. In fact, arms
control talks with Russia were suspended by the Biden administration on 25 February
2022 in response to the invasion of Ukraine.
https://foreignpolicy.com/2022/02/25/biden-russia-arms-control-talks-ukraine-invasion/
And in
February 2023 Russia suspended the New START Treaty.
https://www.armscontrol.org/act/2023-03/news/russia-suspends-new-start
Former US
President Obama had talked about the need for an international commitment to
eliminate nuclear arms completely. Realistically, despite the the Treaty on the
Prohibition of Nuclear Weapons (2017), this seems unlikely to happen in the near future,
without the prospect of some kind of world governing authority accepted by all.
Some experts even doubt the advisability of such a development but nearly all
agree that greater nuclear arms control and further reductions are vital.
https://www.armscontrol.org/reports/2024/nuclear-disarmament-summits-proposal-rejuvenating-progress-toward-world-free-nuclear
https://www.sipri.org/media/press-release/2024/role-nuclear-weapons-grows-geopolitical-relations-deteriorate-new-sipri-yearbook-out-now
https://news.un.org/en/story/2024/09/1154951
http://en.wikipedia.org/wiki/Zero_Option
http://en.wikipedia.org/wiki/Nuclear_power
Conclusions
So, there is
general consensus within the global community that the number and types of
nuclear weapons need to be reduced and further proliferation avoided. Moreever,
some experts argue that with the
increased reliance on AI in nuclear defence systems the catastrophic risks of a
computer error or computer-related human error are leading us towards the
nightmare scenario of Dr Strangelove. In January 2021, the NATO Secretary
General underlined the urgency of the situation and the need for a new treaty
on nuclear arms control to take the place of New START. However, that Treaty has
now expired.
There is also real doubts about the use and safety of nuclear energy for
peaceful purposes, but general agreement on the need for:
1) More
integrated strategies for monitoring and responding to the recruitment of
trained nuclear scientists and engineers by suspicious parties, and against the
purchase or acquisition of fissile materials, nuclear waste materials, nuclear
know-how and technical expertise (Pakistani scientists in North Korea and Iran),
non- nuclear components of a nuclear bomb or advanced delivery systems by such
parties on the black market.
http://www.nci.org/nci-nt.htm
2) Increased
international transparency, on-site controls, information-sharing and
cooperation in this field. Given the current atmosphere of growing geopolitical
tensions, there will be a need for security service surveillance by NATO, the
EU and their allies of the national nuclear programs of countries considered
unreliable or potential threats.
3) Improvements
in the security provided to and at nuclear plants and better and more regular
tests on the safety of nuclear facilities.
4) Increased
security relating to the use, or potential use, of AI in this field.
5) Better
and permanent arrangements for the disposal or recycling or storage of nuclear
waste.