The Nippon Expansion adds a new challenge to Blitzkrieg! What if the Axis coalition had won World War Two, and Germany invaded and occupied the United States of America? And ... what if Japan then turned on its former ally and invaded German-held America? With the help of Godzilla? The Nippon Expansion explores this hypothetical scenario! One player controls the German forces and the other players controls the Japenese forces in a battle for domination of America in an alternate universe 1946.