https://en.wikipedia.org/wiki/Democide
Rummel calculates nearly 43 million deaths due to democide inside and outside the Soviet Union during Stalin's regime.[8] This is much higher than an often quoted figure of 20 million.
His research shows that the death toll from democide is far greater than the death toll from war. After studying over 8,000 reports of government-caused deaths, Rummel estimates that there have been
262 million victims of democide in the last century. According to his figures, six times as many people have died from the actions of people working for governments than have died in battle.