The Japanese launch attacks all over Southeast Asia and the Pacific, and launch a preemptive surprise attack on the American Pacific Fleet at Pearl Harbor. The war is suddenly much larger. In the USSR, the Germans find themselves now heavily on the defensive after the failure to take Moscow, while in North Africa, Erwin Rommel decides he must withdraw out of Cyrenaica to await reinforcements.

Following the German declaration of war on America on the 11th of December 1941, Britain gained an invaluable ally. Securing a joint military command between the new partnership will be central to its success, the question is, how can this be achieved?