[”. . .violence on the scale that the U.S. Army has not seen since Korea” when over 30,000 American troops were slaughtered.]
Peoples Republic of China suffered nearly a million casualties with 400,000 KIA. North Korea suffered half a million casualties with 215,000 killed. South Korea suffered over half a million combined military and civilian deaths.
https://en.wikipedia.org/wiki/Korean_War#Casualties
About 500,000 have died in Syria so far, but that’s just the warm up act.