I will offer to this thread on "how insurgencies end" that if it erupts into violence again within 20 years in that same popualce, that the previous insurgency was merely suppressed, most likely through brute force, but that the underlying causal factors.

Too often militaries and governments slap themselves on the back and chalk a "W" up in the history book, when in fact all they did was beat the populace into submission.

So, in my book, the end of violence is not the end of insurgency, it is the resolution of the failures of governance that is causing the populace to revolt, along with the end of violence that ends an insurgency.