 In February 1921, workers went on strike in Petrograd, resulting in the government proclaiming martial law in the city and sending in the Red Army to quell demonstrations.In March, the Kronstadt rebellion began when sailors in Kronstadt revolted against the Bolshevik government, demanding that all socialists be allowed to publish freely, that independent trade unions be given freedom of assembly and that peasants be allowed free markets and not be subject to requisitioning.Lenin declared that the mutineers had been misled by the Socialist Revolutionaries and foreign imperialists, calling for violent reprisals.