Long what lines can humanitarian interventions be critiqued?

My study is Politics and International Relations and the topic area of this essay is about International Security, focusing on what counts as a humanitarian intervention. I shall include a just war theory and a term of the responsibility to protect(R2P) looking at how to define what is just to go to war in the international community. I would also analyse what are some of the criticisms levelled against the responsibility to protect.

For referencing, I usually use the Chicago style.