The Korean War was fought between North Korea and the United Nations. That is to say that the whole global order, resolved toward global peace, rightly fought a war against an authoritarian state together as one.
To see that war that never quite ended be extended such that North Korean troops are now being employed to help invade a burgeoning liberal-democratic state is just galling.
The United Nations once had the will to oppose this evil, but it seemingly doesn't today.