Propaganda is an ugly art. History is full of distorted and racist imagery of one nation’s enemies during times of war. Looking back on them now we can chuckle at the absurd lengths people went to in an effort to instill hate in one another, but they often remain shocking nonetheless.
This series of paintings from North Korea surfaced on the internet around 2010, but it’s uncertain exactly when they were created. Judging by the American uniforms they’re most likely Korean War era. We can also see this by the one where US soldiers are depicted sawing open a guy’s head (they got lasers to do that nowadays).