George Orwell said this quote
“ We sleep soundly in our beds, because rough men stand ready in the night to do violence on those who would harm usOrwell cited Kipling's phrase making mock of uniforms that guard you while you sleep (Kipling, Tommy), and further noted that Kipling's grasp of function, of who protects whom, is very sound. He sees clearly that men can be highly civilized only while other men, inevitably less civilized, are there to guard and feed them. (1942) ”