Rome wasn't defeated by "other standing armies". So no, that's nothing to do with anything..
Also who the fuck cares about recent US history and the wild west. You sound like a dumb ass who knows very little about the scope of politics, history, and the topics being discussed.
Don't rant as cover when you could entertain the possible truths others are telling you: Community policing was the longest form of stable communities.
Not enforced centralized or uniformed violence.