The case for using military force against North Korea

Selective, judicious, limited use of nuclear explosives on the most difficult North Korean targets, indeed, may offer the only military option that can prevent mass casualties in North Korea, South Korea, Japan and the United States.

Properly used, nuclear munitions can result in a minimum of radioactive or long-term contamination, or mass destruction —far lesser consequences than if North Korea actually detonated one of their crude nuclear weapons.The Conversation

The implications of resorting to military options on North Korea that might include nuclear explosives should weigh heavily on Kim Jong-un. China, Russia and others have assumed that the U.S. is just bluffing.