Let's say in the late 1930s, America falls into a Second Civil War triggered by the Depression. As a result, it is powerless to stop the Axis powers and the Nazis and the Japanese go berserk. Nazis take over all of mainland Europe up to the Urals but Britain remains free. Japan conquers eastern China, and all of Southeast China. Which empire would last longer in peacetime, the Nazis or Japanese? Can either have a chance at surviving into the 21st century?