International law is a vast and complex field. you should choose topic within international law, ( or a specific issue/problem) that interests you-you may wish to select emerging doctrines within international law that are still controversial and debated among states, such as humanitarian intervention, pre-emptive war, "responsibility to protect" etc.

- Other general suggestions: International labor issue/relations, environmental international law, international criminal law, international humanitarian law, international tribunal/cases,

Your critique should include a detailed identification and definition of the theme/issue/principle of international law you have chosen. your discussion must include your general impression, analysis and evaluation of international law in terms of strength, weaknesses, effectiveness, justice and etc. it should also include analysis of international law from a perspective other than the Western tradition, this entails some research on your part to find critical analyses of international law, for example, from a Third World, Feminist, Environmental, Marxist, etc perspectives.