Causes of WWII Causes of WWII Axis Countries Germany Adolf Hitler Italy Benito Mussolini Japan Hideki Tojo Allies Countries United States Franklin D. Roosevelt and later, Harry Truman Great Britain Winston Churchill Soviet Union (after being invaded by Germany) Joseph Stalin Canada Don’t have to know the leader 1. Political instability and economic devastation in Europe resulting from World War I ×Worldwide depression ×High war debt owed by Germany ×High inflation ×Massive unemployment 2.Rise of Fascism ×Fascism is a political philosophy in which total power is given to a dictator and individual freedoms are denied ×Fascist dictators included Adolf Hitler, Benito Mussolini, and Hideki Tojo ×These dictators led the countries that became known as the Axis Countries ×The Democratic Nations (United States, Great Britain, and Canada) were known as the Allies ×The Soviet Union was not a democratic country but they joined the Allies after they were invaded by Germany.