ENDWORLD series by Dave Robbins
There's also the BLADE FH series, set in a post-apocalypse futuristic former US, where IIRC some of the eastern seaboard is controlled by Soviet forces who successfully invaded, with former US territory being carved up between the Freedom Federation of 5 separate entities-
THE FAMILY---compound called the HOME, located at Lake Bronson State Park in northern Minnesota
THE CIVILIZED ZONE---embraces former states of Kansas, Nebraska, Colorado, Wyoming, New Mexico, Oklahoma, half of Texas, and parts of Arizona and New Mexico.
THE CAVALRY---superb horsemen who control North and South Dakota.
FLATHEAD TERRITORY---the Flathead Indians occupy all of Montana.
FREE STATE OF CALIFORNIA---a shining beacon of hope in the new world.
THE CLAN---they inhabit the town of Halma in northwestern Minnesota.
THE MOLES---live in a subterranean city in northern Minnesota.
THE FREEDOM FEDERATION---the collective entity by which all of the above factions are known.
THE FREEDOM FORCE---made up of a special member from each faction, their mission is to combat any and all threats to the security of the Federation.
THE WARRIORS---the elite defenders of the Home.
all of whom face off against other areas controlled variously by radiation-induced mutants, criminal gangs, and wacko religious cults such as
THE TROLLS---vicious inhabitants of Fox, Minnesota. Their motto: "Trolls want WOMEN!"
WACKS, PORNS & NOMADS---three gangs who have over run the Twin Cities of Minneapolis and St. Paul.
LEATHER KNIGHTS---bikers who control St. Louis, Missouri. If you're not one of them, you're history.
THE ZOMBIES---New York is theirs; lets visitors beware.
THE VIKINGS---fierce marauders of the High Seas.
FREEBS---freeborn Pennsylvanians who resist the yoke of tyranny.
PACKRATS---Young freedom fighters based in Valley Forge, Pennsylvania.
SUPERIORS---androids who control Houston, Texas.
THE GILD---A brotherhood of assassins.
THE BRETHREN---mutant rulers of Seattle. Their motto: "Humans were born to be enslaved."
THE MASTERS---inhuman controllers of Miama.
THE PEERS---they believe in the rule of law above all else---their law. Atlanta, a city ruled by lawyers. Oh, the horror!
THE HOUNDS---their turf is Memphis. Their base of operations is a mansion that once belonged to a famous singer called 'the King'.
THE CHOSEN---the special ones, they hide a vile secret in Dallas.
THE TECHNICS---technocrats have turned Chicago into a fascist nightmare.
THE BREED---radiation spawned Neanderthals who have staked out Yellowstone National Park as their personal slayground.
BLACK SNAKE SOCIETY---voodoo potentates of New Orleans.
SPARTANS---as tough as their namesakes, they thrive on war.
MUTANTS---some are genetically engineered, others are the byproducts of radiation, all are deadly.
MUTATES---pus covered monstrosities, the result of chemical warfare on a global scale.
THE CLOUDS---some say they are alive, acidic fogs that devour flesh and bone.
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