Bro according to me there are some glaws in your essay, the biggest being relevancy, the major task is to reply to the question whether the world is moving towards peace or not, I find it difficult to imagine how your introduction to UN answers this question, thereafter 4 and 5 are relevant if you have mentioned whether in these wars world peace got established or not, 6th can be perfectly relevant, 7 shouldnt exceed more than 150 words as thisis not the main question,,, this is my assessment of your essay,,
If part 1 2 3 and 7 are the minute part of your essay, and 4 5(given you discuss the essay's question) 6 is where you major chunk of your essay lies, I would pass you with ease...

Otherwise, luck is what matters at the end of the day