[Publius]

What if local LEO is not protecting the people from “pockets” of violence...AKA, sanctuary locations and no-go zones. Would that qualify as “held territory” as a result of insurgent violence?

You need to reach the point where shots are actually fired.

Note: Fort Sumter is a textbook proof.

[ichabod1]

What if it turned out that a state or NGO actor was executing massacres around the country to change political narrative? Doesn’t terrorism count as a casus belli? Foreign invasion and occupation?

[little jeremiah]

Shots have been fired. Plenty of shots.