Subject: Re: This is why troops are needed
2 quotes come to mind.

"There's a reason you separate military and the police. One fights the enemies of the state, the other serves and protects the people. When the military becomes both, then the enemies of the state tend to become the people."
— Commander William Adama, Battlestar Galactica

and

"Evil begins when you begin to treat people as things."
— Granny Weatherwax, I Shall Wear Midnight by Terry Pratchett