The most destructive war begins as German troops invade Poland.

Facing a new type of warfare, Poland was conquered in just four weeks by Hitler's army.

Being victorious in western Europe, Nazi Germany controlled Denmark, Norway, the Netherlands, Belgium and France, but Britain remained defiant.

No longer considering Britain a threat, Hitler focuses on Operation Barbarossa.

On December 7, 1941, Japanese planes bomb the U.S. Pacific Fleet in Pearl Harbor.

Benito Mussolini dreams of recreating the Roman Empire.