It’ll be street violence, anarchy, terrorism etc… low intensity conflict.

..until foreign powers get involved, each with their own intentions and motivations.

3 masked man enter a pub and try to steal owner there has had enough fight back with something some guys side with him 3 now unmasked man of a certain group die (doesn't matter which) police arrest the ones that defended themselves their families protest, police arrest them now other ppl protest, not enough police to arrest them all it becomes violent, it expands to most town center of important cities Executive resigns as they don't want to deal with all that shit now chaos reigns till enough violence pushes all rioters into submission Luckly it doesn't transforms in a us vs them, instead in a all vs gvnmt fight worse case it becomes a three way fight, then you have a real civil war. no need for guns for violence, just enough ppl that had had enough