In modern times, South Korea was defeated at the beginning of the Korean War, killing leftists and prisoners on a large scale, including the National Training Corps (similar to reform-through-labour prisoners). Because the North Korean army engaged in infiltration tactics, South Korea even ignored the July 21 massacre and even killed all suspected civilians. This history was concealed for decades, and it was not until the 1980s that South Korea realized democracy and a typhoon destroyed a mine used to bury corpses that this history was rediscovered. Later, according to statistics, the total number of people slaughtered was not less than 65438+ 10,000, and 30,000 people in the National Training Corps were slaughtered.

There is also a famous Katyn tragedy. In retaliation for Poland's massacre of captured Soviet prisoners of war during the October Revolution, the Soviet Union secretly slaughtered more than 20,000 Polish officers, intellectuals and elites from all walks of life during World War II, with extremely cruel means.

Later, when the Germans attacked Moscow, a large number of bodies buried in the massacre were unexpectedly dug up in Katyn forest on the outskirts of Smolensk. The Soviet Union has always denied the existence of this massacre, saying that the Germans killed prisoners of war. Until the disintegration of the Soviet Union, Gorbachev and Yeltsin handed over power, and a confidential document No.1 was declassified, which proved that this was indeed the massacre commanded by beria and approved by Stalin himself.