Theory of International Relations

I have to follow the subject of Theory of International Relations and I simply hate it. I like International Relations, but I despise the fact that you have to break it all down to theories and schemes... Who cares if it is Realism or something else? This is something you will NEVER use again for the rest of your life and still they want you to learn it and, even worse, write about it. I now have to take a topic and write 7 pages about it. No problem, and I will happily do that, but what I don't like is that I have to incorporate a theory in it. I have to have a topic hat deals with a question including a theory. Now I came up with: "In which way does R. Gilpin's theory about the role of warfare in change, supports the (possible) use of Private Military Companies by the UN?" Exciting isn't it? I can say a lot about the UN, PMCs and the combination of both, but not a clue what I have to do with the theory. This is not going to be a nice couple of weeks. On a side-note: the guy who gives the course is younger than I am. How much should I take from him? :(