The Korean War debacle was the result of 16 years of the Red loving FDR and 5 years of his handpicked Red loving successor Truman.
The nation has never recovered from those 21 years of incubation, cultivation, nurturing and promotion of marxism.
Stalin declared war on Japan 6 days before the Japanese agreed to surrender. For that, the Soviets got to occupy half of Korea. Otherwise there would be no Communist regime in the North and no Korean War. One of the worst decisions made by Truman in 1945, to divide Korea.
At least FDR was succeeded by Truman and not by Henry Wallace.