 In the Kellogg-Briand Treaty of 1928 and the Treaty of London of July 1933, the Soviet Union and Romania subscribed to the principle of non-violent resolution of territorial disputes.Transnistria, at the time part of the Ukrainian SSR, itself part of the Soviet Union, was formed into the Moldavian ASSR (1924–1940) after the failure of the Tatarbunar uprising.The land reform legislated by "Sfatul Țării" in 1918–1919 resulted in the redistribution of land among the rural population of the region, which constituted 80%.