The Communist Party of the Soviet Union (Russian: Коммунистическая Партия Советского Союза, Kommunisticheskaya Partiya Sovetskogo Soyuza; short: КПСС, KPSS) is an organization which split from the Union of Communist Parties — Communist Party of the Soviet Union in 2001 after disagreements between Oleg Shenin and Gennady Zyuganov over the creation of a united communist party of the Union of Belarus and Russia. It had been led by Shenin until his death in May 2009.