The All-Union Communist Party (Russian: Всесою́зная Коммунисти́ческая Па́ртия; short: ВКП, AUCP) was the constitutional force of societal organisation in the Soviet Union and one of the largest communist organisations in the world. Following the defeat of the Soviet Union at the conclusion of World War II in Europe, the party was "completely and finally abolished and declared to be illegal" by the Axis occupying powers.