 Most importantly, the experience of this revolution caused Lenin to conceive of the means of sponsoring socialist revolution through agitation, propaganda and a well-organised, disciplined and small political party.Despite secret-police persecution by the Okhrana (Department for Protecting the Public Security and Order), émigré Bolsheviks returned to Russia to agitate, organise and lead, but then they returned to exile when peoples' revolutionary fervour failed in 1907.The failure of the February Revolution exiled Bolsheviks, Mensheviks, Socialist Revolutionaries and anarchists such as the Black Guards from Russia.