The document discusses the origins and causes of World War II. It identifies the Axis Powers as Germany, Italy, and Japan, and the Allied Powers as Great Britain, the Soviet Union, and the United States. Some of the key causes it lists include the harsh terms of the 1919 Treaty of Versailles, the rise of totalitarian regimes in Europe led by fascist Italy and Nazi Germany, and the failure of appeasement policies toward German aggression. It also discusses the worldwide depression, isolationism in the US, and events that eventually led the US to join the Allied side against the Axis powers.

1. World War II: Why Did It Happen?

12. What is going on with the United States, though?

13. Isolationism