Little is known about the role played by the Socialist Revolutionaries and the Mensheviks in the so-called Far Eastern Republic, an independent state, at least in name, in Eastern Siberia during the early ̓twenties. Based mainly on material in the archive of the Party of Socialist Revolutionaries, this note wants to shed some light on the events in the area at the time. Unfortunately the author did not have access to a sufficient amount of material from Menshevik archives to detail the Menshevik contribution to the Far Eastern Republic, but we shall see how the Bolsheviks adopted from the Socialist Revolutionaries and the Mensheviks the idea to form this kind of state, and how they subsequently gained a hold upon the Far Eastern Republic.