I think plenty of states would break up. It's hard to say which, but I think Eastern Oregon, North/South Florida, or parts of California/Nevada could.
A few regions would surely break away, like the Upper Peninsula (Michigan) or the Delmarva Peninsula/Eastern Shore (mostly Maryland, partly Virginia).
Those regions are landmasses are separated by water from the rest of the state and wouldn't necessarily be part of the same country in a balkanized US.
Mountainous areas would definitely define major fault lines as highways are blown and armored vehicles consolidate land otherwise. Major rivers have generally already done that with state lines but would probably increase the squiggles somewhat.
I think its also worth mentioning that existing infrastructure may bring certain cities together, given that it isn't decimated. Its especially important to note in regions which lack certain natural resources and rely on imports.
I think plenty of states would break up. It's hard to say which, but I think Eastern Oregon, North/South Florida, or parts of California/Nevada could.
A few regions would surely break away, like the Upper Peninsula (Michigan) or the Delmarva Peninsula/Eastern Shore (mostly Maryland, partly Virginia).
Those regions are landmasses are separated by water from the rest of the state and wouldn't necessarily be part of the same country in a balkanized US.
Mountainous areas would definitely define major fault lines as highways are blown and armored vehicles consolidate land otherwise. Major rivers have generally already done that with state lines but would probably increase the squiggles somewhat.
I think its also worth mentioning that existing infrastructure may bring certain cities together, given that it isn't decimated. Its especially important to note in regions which lack certain natural resources and rely on imports.