Which faction of the Marxist Russian Social Democratic Labour Party did Nikolai Krivoruchko join?
Bolsheviks The Bolsheviks, originally also Bolshevists or Bolsheviki (Russian: большевики, большевик (singular) ; ] ; derived from большинство "bol'shinstvo", "majority", literally meaning "one of the majority") were a faction of the Marxist Russian Social Democratic Labour Party (RSDLP) which split apart from the Menshevik faction at the Second Party Congress in 1903. The RSDLP was a revolutionary socialist political party formed in 1898 in Minsk in Belarus to unite the various revolutionary organisations of the Russian Empire into one party.
Komsomol The All-Union Leninist Young Communist League (Russian: Всесою́зный ле́нинский коммунисти́ческий сою́з молодёжи (ВЛКСМ)    ), usually known as Komsomol (Russian: Комсомо́л , a syllabic abbreviation of the Russian "kommunisticheskiy soyuz molodyozhi"), was a political youth organization in the Soviet Union. It is sometimes described as the youth division of the Communist Party of the Soviet Union (CPSU), although it was officially independent and referred to as "the helper and the reserve of the CPSU".