A. Food. In any other situation it would apply to other, but as it seems they do not eat much food at home, this is their main source of food, it needs to be put there under food.
"Aggressor" is a fairly political and loose term. I believe they were both proportionally bad in the situation. However since you are likely looking for an argument for one side, I suppose I would have to go with the USSR. They started the Berlin blockade which both violated treaties and nearly led to a large war. At the time in Russia, if anyone disagreed with their secular agenda or government they would be exiled. I think it's important though to again point out that contrary to popular belief, both sides got into unwanted wars and did aggressive things during the time and neither should be dubbed the only "aggressor"
Many people feel as though the United Nations fails in many ways to do it main task, which is to make world peace. There ares simply too many smaller fighting groups to make the organization truly effective.
