This scenario already played out during the Arab Spring in 7 nations.
"I think that we're going to see acts of sabotage, assassinations, detonation of bombs, starting wildfires," Chang argued. "And the Biden administration is paying no attention to this at all."
one group of Bubbas with a .50 bmg can stop units in their tracks now. not to mention drones, hacking, AR15s, Tannerite, etc.
tons of combat vets who are BORED out in the country side too.
it's a very tough task to invade America
PRO TIP. Against China, TARGET THE OFFICERS
I will quote the evil GHWB - there are two ways to fight America. Asymmetrically, and stupid.
Again... not talking about conventional warfare.
Guerrilla warfare
Gladio Operations
No direct engagement
Lots of bored combat vets would be frustrated with an enemy they did not see and how that would lead to paranoia and confrontation with Americans of Asian backgrounds.
use Democrat style internment camps for a bit
the enemy has to eat/sleep/shit/resupply. They aren't gods and they panic when officers die