Correct answer:
government supported massacres
The genocide carried out by the Ottoman Empire was a plan by government leaders to eliminate Armenians. In 1915, the Ottoman Empire began a campaign against Armenians which, by the 1920s, had resulted in more than a million Armenians killed and many more deported from the country.
The genocide in Cambodia was led by the dictator Pol Pot and his Khmer Rouge regime. Between 1975 and 1979, 1½ to 2 million Cambodians were slaughtered, which was almost a quarter of the country's population.