What are some of the problems that could be seen within the democracy of athens? who were the people that held the most power within this government?

The nobles held the most power in this government, not the Kings. It was because the Nobles were supposedly able to communicate with the Gods. Problems able to be seen within the democracy of Athens was that people had to own a certain amount of land and women were unable to vote.
Hope this helps! 

If we are talking about the second world war, then then answer would be that the Chinese kept the Japanese busy fighting them, and in turn, about 800,000 of their troops. This gave the Americans, who were the main force against the Japanese during this time, a little breathing room with which to continue military operations.

Hope this answered your question.