The period after the revolution was one of retreat for the left and the SDKPiL was to split into two factions as a result. Always closely connected to the RSDLP the Polish party's problems were intricately interwoven with those of the Russian Party. Attending the Fifth Congress of the RSDLP held in London in 1907 Jogiches and Warski were elected to the united Central Committee where they assumed a position of support in respect of the Bolshevik faction. In the following years however the All-Russia party almost ceased to exist as a unified body and the SDKPiL itself distanced itself from all the Russian factions while seeking to promote unity of the various factions. This perspective ensured that Leon Trotsky was to be a frequent contributor to the theoretical publication of the SDKPiL the Social Democratic Review. The SDKPiL itself split, in 1911, during the downturn in class struggle of these years with the Warsaw Committee leading a breakaway from the Central Committee dominated by Jogiches.