The Convention on the Prevention and Punishment of the Crime of Genocide (CPPCG), or the Genocide Convention, is an international treaty that criminalizes genocide and obligates state parties to pursue the enforcement of its prohibition. It was the first legal instrument to codify genocide as a crime, and the first human rights treaty unanimously adopted by the United Nations General Assembly, on 9 December 1948, during the third session of the United Nations General Assembly. The Convention entered into force on 12 January 1951 and has 152 state parties .
The Genocide Convention was conceived largely in response to World War II, which saw atrocities such as the Holocaust that lacked an adequate description or legal definition. Polish-Jewish lawyer Raphael Lemkin, who had coined the term genocide in 1944 to describe Nazi policies in occupied Europe and the Armenian genocide, campaigned for its recognition as a crime under international law. This culminated in 1946 in a landmark reso