Despite divisions in its ranks the entire party adopted an internationalist position with the onset of World War I in 1914. The Warsaw Committee of the SDKPiL called a conference of all revolutionary factions for August 2 at which both the Warsaw Committee and Central Committee were joined by the PPS Lewica (Left) and the Bund. The conference issued an unequivocal denunciation of imperialist war and called for the workers to take state power. Despite this attempts to coordinate the different parties came to nothing. But as the war continued both social democratic factions joined the Zimmerwald movement with the Warsaw Committee becoming particularly close to the Bolsheviks. The growing clarification of right and left internationally would enable the two factions of the party to reunify at a congress held on November 4, 1916, a new Central Committee was elected and the party pledged support to the Zimmerwald movement.