Tora! Tora! Tora!

In August 1939, a trade embargo imposed by the United States is depriving a belligerent Japan of raw materials. Influential army figures and politicians push through an alliance with Germany and Italy in September 1940 and make preparations for war. The newly appointed Commander-in-Chief of the Combined Fleet Admiral Isoroku Yamamoto reluctantly orders the planning of a pre-emptive strike on the U.S. Pacific Fleet.