1. Basic Knowledge of the World Wars
Basic stuff that you really need to know

2. World War I 1914 - 1918 Allies Central Powers United Kingdom France
Italy
Russia
Central Powers
Germany
Austria-Hungary
Turkey

3. World War II 1939 - 1945 Axis Powers Allied Powers Germany Italy Japan
United Kingdom, France, Soviet Union (USSR), United States, & China

4. The U.S. Role
In both WWI & WWII the U.S. sent troops and supplies to the Allies

5. The Cold War
The U.S. vs. The Soviet Union

6. U.S. already in Europe during Cold War