All the U.S. states say "fukk it" and decide to split up. From there, everyone decides to go to war with each other.
Who wins? Which states team up together? No foreign countries get involved.
California and Texas are the favorites since both are in the Top 10 of GLOBAL GDP. They've got money, lots of military personnel and can sustain themselves based on what they produce.
Alaska is well armed but has a tiny population and is more than 2x the size of Texas. Like trying to defend against the KC Chiefs offense with 2 players on D.
My guess is that TX and Cali would try to annex their neighbors quickly. New York will try the same thing but have a MUCH harder time dealing with their neighbors.
How does your state survive the Royal Rumble?
1. Nothing on the coasts wins without allies. With no way to get supplies in the coasts would get hit HARD by a lack of foodstuffs and manufacturing from the midwest and south. Remember what California and TX produce mostly doesn't hold as much value in a total war.
2. Depending on how long the fight goes on, water becomes important. If CA loses access to fresh water they all die. If im fighting CA...that's the first thing I would do.
3. The North East and Rust Belt might join forces. Mostly because trying to fight people like the Michigan Militia, in the winter is a mistake.
4. TX is one of the ONLY states that actually has enough of just about everything to be self-sustaining. However, its so BIG that deploying troops would take so long that a small insurgent group could take say, Houston with little resistance if it came from within.
5. The south would actually be REALLY hard to fight because of the sheer weirdness of the terrain. Its mountains and swamps and rivers and woods. And if you were the south that's where you would fight.
In the end it actually would be who gets supplies from Canada or other countries and who controls the massive food source in the middle of the country. I'd put my money on TX or the NE if the Industrial Midwest joined them. I think both CA and the South would cannibalize themselves. Most black people in the south wouldn't fight for "the South" and CA is more politically divided than people think it is.