Military Intervention for Humanitarian Purposes

In any discussion about using military force as part of an attempt at humanitarian intervention in order to prevent genocide and human rights abuses, there are a series of issues to be examined. First, there is the question of legitimacy. Is there a clear mandate from the UN Security Council? If there is not, should countries act without it if there is widespread support in the UN General Assembly? Then there is the question of effectiveness. Do such missions usually achieve their basic goal of bringing peace and stability and ending the violence, or do they lead to more violence? Is the mission welcomed by the local people involved? (Compare for example: Somalia, Afghanistan and Libya) Moreover, would the funds used for the mission be better spent elsewhere as direct aid on a more concrete problem? (e.g. on providing food, water, medicine and shelter to an area not requiring a military presence). There is another important consideration that is often raised. Many experts argue that since the foundation of the UN humanitarian intervention has always been 'politicized'. What exactly the international community should do in response to the situation in Syria, for example, cannot be debated 'neutrally', simply as a humanitarian crisis. Each member state of the UNSC and the UNGA will inevitably bring to the discussion its own economic and strategic interests, and its own cultural or ideological perspective. In international relations this is the normal context in which a diplomatic discussion of a question like that of Syria takes place.

http://www.theguardian.com/commentisfree/2011/mar/03/libya-escalating-drama-case-liberal-interventionv

In order to respond to a question like:

What are the main factors to be weighed when the international community is considering military intervention in response to a humanitarian crisis?

you need to look at these sources and think about the ideas raised in relation to past and present humanitarian crises and intervention or non-intervention by the international community:

http://en.wikipedia.org/wiki/Responsibility_to_protect

http://responsibilitytoprotect.org/ICISS%20Report.pdf