Germany invades Poland in 1939, leading to the start of World War 2. They receive support from Italy.
Germany Starts the War
Italy officially enters the war in 1940, supporting Germany's efforts.
Japan joins the Axis powers in 1940, expanding its territory in Asia.
The Soviet Union enters the war in 1941, supporting the Allied powers after being invaded by Germany.
The United States enters the war in 1941 after the attack on Pearl Harbor, supporting the Allied powers.
Britain declares war on Germany in 1939, leading the Allied powers in Europe.
France falls to Germany in 1940 but continues to resist occupation, supporting the Allies.
China fights against Japanese invasion from 1937, receiving support from the Allies.
Canada joins the war in 1939, supporting the Allies with troops and resources.
Australia enters the war in 1939, supporting the Allies in the Pacific and European theaters.