Capt. Griffin
Mongoose
Although there is a popular culture split between the coasts and the center it does not go deep enough to really be divisive. Many in the old south still have a sense of national pride for 'Dixie' just look at all the debates about droping the CSA flag from various state flags. Besides the center would be choked off by the coasts in very short order. No supplies coming in = end of war, especially with easily blockaded ports.
Another good scenario would be to use the basis of the Shadowrun universe. One would have to discount at lease some of the magic and goblinization factors but the national split story is somewhat plausable and already done for you.
Another good scenario would be to use the basis of the Shadowrun universe. One would have to discount at lease some of the magic and goblinization factors but the national split story is somewhat plausable and already done for you.