sentences:  The Treaty of Tartu was a peace treaty between Estonia and Russian SFSR signed on 2 February 1920 ending the Estonian War of Independence.According to this treaty, Russia (Russian Soviet Federative Socialist Republic) recognized Estonia's sovereignty and renounced any and all territorial claims on Estonia.In 1920 the rules were laid down in Russia at the Comintern's Second Congress, Communist parties abroad were to be created either afresh or else by splitting Social Democratic parties; in any case, they were to be accountable to Moscow and not to their domestic constituencies.