Introduction

The latest version of the Fall of the American Empire Diplomacy Variant is called Empire4. The changes between this version of the map and the previous one were more than the two previous versions, but still relatively minor. There intended effects are as follows:

Starting Positions in Empire4

Power Letter Starting Position
BC B F Anchorage A Calgary A Vancouver
California C A Los Angeles F San Diego A San Francisco
Mexico X F Guadalajara A Mexico A Veracruz
Florida F A Jacksonville F Miami A Tampa
Heartland H A Chicago A Milwaukee A Minneapolis
NewYork N A New Jersey F New York City A Philadelphia
Quebec Q A Montreal F Quebec City F Ungava
Peru P A Bogota F Cali/NC F Lima
Texas T A Dallas F Houston A San Antonio
Cuba U F Havana A Holguin F Kingston

Notes on the Empire4 Map

Great Lakes
Fleets cannot move directly from one Great Lake to another, except from Lake Michigan to Lake Huron.
Canals
There are a few one-space canals that act like Kiel in Vanilla dip. This means that the spaces have no coasts and fleets can exit on any side. Empire 4 has one more Canal, the Hudson Canal between New York City and New York State. Fleets can move from one to the other.
Waterways
There are two waterways in Empire4 where fleets can move as though there were a coastline in the listed territories. These rivers do not impede army movement: For example, a fleet could move from Tennessee to any of Kentucky, Missouri, Arkansas or Deep South.
Landbridges