North Korea is enemy to only one country - U.S.A. They fought the Koran War of 1952 to a stalemate, still at war technically today. North Korea suffered horrific loss of 3 million dead from American carpet bombing similar to that of WW2. The U.S. 'took it out' on the Koreans after its army of several divisions under Gen. MacArthur was nearly wiped out by Chinese forces after trying to invade China. 

So the U.S. is both enemy of North Korea and China from this war. The U.S. is also enemy of Vietnam in the Vietnam War, and Cambodia and Laos after invading them. 3 million were killed in these 3 Asian countries, add the 3 million of North Korea and you have 6 million Asian dead from American imperial invasions since WW2. That's the same as the Nazi Holocaust on the Jews.

We know how the Vietnam War ended. All the weapons and forces the U.S. used did not win it after more than 12 years of horrific fighting including massive B-52 carpet bombing. 

So let's see Trump start Korean War 2.