 Complete the following phrase:  In 1910, Steinberg returned to Russia and worked as a lawyer. During the First World War, he conducted anti-war and revolutionary work, was arrested in 1915 and exiled to the Ufa province. He continued his work as a lawyer in Ufa, where he led the Left Socialist Revolutionaries of the Ufa province. He was elected a delegate of the City Duma, was a member of the Executive Committee of the Ufa Council of Workers and Soldiers and the All-Russian Council of Peasant Deputies; participant in the All-Russian Democratic Conference; Member of the Provisional Council of the Russian Republic. Steinberg condemned the 