At the same time, workers' councils, known in Russian as "Soviets", sprang up across the country. The Bolsheviks, led by Vladimir Lenin, pushed for socialist revolution in the Soviets and on the streets. On 7 November 1917, the Red Guards stormed the Winter Palace in Petrograd, ending the rule of the Provisional Government and leaving all political power to the Soviets. This event would later be officially known in Soviet bibliographies as the Great October Socialist Revolution. In December, the Bolsheviks signed an armistice with the Central Powers, though by February 1918, fighting had resumed. In March, the Soviets ended involvement in the war and signed the Treaty of Brest-Litovsk.