What are the long-term effects World War II had?

World War II had many long-term effects. The United States and the Soviet Union became the two superpowers in the world; this would be one of the causes of the Cold War. The United States led the way in forming the United Nations in order to provide an outlet for the world to discuss its problems before another massive war took place. The most famous war crimes trial took place at Nuremberg where several Nazis were hung or imprisoned for crimes against humanity. This set the stage for later war crimes trials of other notorious leaders throughout the twentieth century. The nation of Israel was created as a Jewish homeland due to the horrific nature of the Holocaust. Israel has been influential both in Middle Eastern politics and world diplomacy ever since. The United States gave money to Western Europe through the Marshall Plan after World War II in order to combat Communism and support the economies of valuable trading partners. Most importantly, World War II saw the only use of an atomic weapon in wartime; ever since, world leaders have strenuously tried not to use this weapon.
In the United States, the return of the World War II veterans back to their homes led to the Baby Boom. This generation is still one of the most affluent and politically active generations in American history. The G.I. Bill, established in 1944, remains a valuable way to reward US veterans for their service and to assist with their transitions back to civilian life.