Jornadas de Julio
On returning to Russia, Voykov became a Commissar of the Ministry of Labor of the Provisional Government; he was responsible for resolving conflicts between workers and employers. After the July Days, when the Menshevik faction supported the repression against the rioters and Bolsheviks, Voykov left St. Petersburg for the Urals. There he soon joined the Bolshevik faction and was a member of Yekaterinburg Soviet and was engaged in trade union activities. After the October Revolution he joined the Yekaterinburg Military Revolutionary Committee. he was elected chairman of the Yekaterinburg City Duma.