Allied Powers: The Allied Powers were countries that opposed the Axis Powers during World War II. They included nations such as the United States, Great Britain, Soviet Union, and China.
Axis Powers: The Axis Powers were countries that formed an alliance during World War II. They consisted primarily of Germany, Italy, and Japan.
Treaty of Versailles: The Treaty of Versailles was a peace treaty signed at the end of World War I. It imposed severe penalties on Germany and laid some groundwork for future conflicts leading up to WWII.