we ought to realize by now (see Korea, see Vietnam, see...

we ought to realize by now (see Korea, see Vietnam, see Afghanistan, see Iraq, see Iran) that deploying the US military, or dealing billions of dollars a year of arms to our ally of the moment that can serve as a regional rival to our enemy of the moment, is not always the best way to make threats go away. Our military and weapons prowess is a fantastic and perfectly weighted hammer, but that doesn't make every international problem a nail.