After the war, Europe was in need of financial aid.
Many of the countries prior to the war went back to their old government. The USSR took over many countries in Eastern Europe.
After the war, the U.S the allied powers occupied Japan until it recovered from the war and gained its country back in 1952.
The USSR divided Korea up in to North and South. Russia was suppose to take over the north side and the allies to watch the south side, but that never happened. North Korea became controlled by communist.
Originally there were 51 members from China, France, Soviet Union, U.K, and the U.S. There were also 5 permanent Security Council Memebers.
After the war, the Allied powers formed the United Nations in order to prevent WWIII from happening. They formed on October 24, 1945.
After the war, some countries in Europe had communist governments and was together by the Warsaw Pact.
The U.S and the western countries formed NATO to rebel against communism. The tension between the 2 led to the arms race also known as the cold war
After the war, leaders from Germany and Japan were put on trial because they broke the laws of the Geneva convention and commited crimes against humanity.