Taking power at the height of Marxism–Leninism's global impact, Pol Pot proved divisive among the international communist movement. Many claimed he deviated from orthodox Marxism–Leninism, but China backed his government as a bulwark against Soviet influence in Southeast Asia. To his supporters, he was a champion of Cambodian sovereignty in the face of Vietnamese imperialism and stood against the Marxist revisionism of the Soviet Union. Conversely, he has been internationally denounced for his role in the Cambodian genocide and is regarded as a totalitarian dictator guilty of crimes against humanity.