Drag the factors below to organize them by cause-and-effect relationships leading to WWII in Europe. Click on factors to create connections between them.

Trigger Factors Contributory Factors Underlying Factors

Outbreak of World War II in Europe (1939)

Trigger Factors

Immediate causes that sparked the war

Contributory Factors

Events that escalated tensions

Underlying Factors

Long-term conditions that set the stage

Historical Factors

German Invasion of Poland (Sept 1939)
Nazi Aggressive Expansion
Failure of Appeasement Policy
Treaty of Versailles (1919)
Great Depression (1929-1939)
Rise of Adolf Hitler
Munich Agreement (1938)
German Rearmament