Hopefully not, but if there is one I think it would look much differently than the first one and the civil war and would probably be urban vs rural.
Also, unless the US Military fractures (which would be a very bad scenario) whichever side has them will control the country and whatever resistance is left would need to resort to guerrilla warfare. The US Military is far more powerful than it was during the Revolutionary War and the Civil War, which relied heavily on State Militias. There is no state militia, or combination of state militias, that will be able to withstand the might of the US Military. This is why I think they would resort to guerrilla warfare/terrorism if something were to happen.
Hopefully not, but if there is one I think it would look much differently than the first one and the civil war and would probably be urban vs rural.
Also, unless the US Military fractures (which would be a very bad scenario) whichever side has them will control the country and whatever resistance is left would need to resort to guerrilla warfare. The US Military is far more powerful than it was during the Revolutionary War and the Civil War, which relied heavily on State Militias. There is no state militia, or combination of state militias, that will be able to withstand the might of the US Military. This is why I think they would resort to guerrilla warfare/terrorism if something were to happen.