In 1917, after the February Revolution, Axelrod returned to Russia. By then some Mensheviks had already joined Kerensky's Provisional Government and supported government war policy. Despite all his efforts, Axelrod failed to gain Mensheviks' support for a policy of immediate peace negotiations with the Central Powers. After the Bolshevik victory, which Axelrod called a "historical crime without parallel in modern history", he toured the world rallying socialist opposition to the Bolsheviks.