If troops continued to fight, then they would find themselves facing combat veterans who had walked in their boots, knew their equipment, and knew their tactics. Troops would still have to set up security checkpoints. Troops in tanks and troop carriers still have to get out to pee. Troops would still have to drive through hostile cities and interact with the population.
It isn’t just that. I have said before that civil wars are ALWAYS ugly. How much morale will there be when the soldiers manning the armored troop carriers come home to find their family dead? Or will the worker in an ammo factory or civilian making aircraft engines still put out quality work after a military patrol has killed their family for not turning in an old shotgun?
A civil war in this country would be a very ugly affair. There would be no winning, only different degrees of losing.