3. China
Around 40 million people were killed from 1949 to 1975, under Mao Zedong regime. He was a Chinese communist and founding father of the People’s Republic of China, which he governed from 1949 until his death in 1976. He was influenced by Marxist–Leninist theories, whereas his military strategies and political policies are known as Maoism or, in the other name Marxism-Leninism-Maoism.