On 15 December, the Russian government signed an armistice with the Central Powers. On 26 January 1918, a workers' uprising sparked the Finnish Civil War and the establishment a few days later of the Finnish Socialist Workers' Republic. Soviet Russia and the Finnish workers' republic signed a treaty of friendship on 1 March 1918. The armistice with the Central Powers had expired on 18 February, but on 3 March Russia signed the Treaty of Brest-Litovsk and made peace with the Central Powers.