What treaty signed in March 1918 between Russia and Germany ended Russia's participation in World War 1 and the loss of its Baltic and Ottoman territories?
Armistice between Russia and the Central Powers Armistice between Russia and the Central Powers On 15 December 1917, an armistice was signed between the Russian Soviet Federative Socialist Republic (RSFSR) on the one side and the Austro-Hungarian Empire, Bulgaria, the German Empire and the Ottoman Empire—the Central Powers—on the other. The armistice took effect two days later, on 17 December. (These were 2 December and 4 December, respectively, in the Old Style [O.S.] calendar in use in Russia at the time.) By this agreement Russia "de facto" exited World War I, although fighting would briefly resume before the Treaty of Brest-Litovsk was signed on 3 March 1918
Territorial issues between Estonia and Russia Estonia was determined by the 1920 Tartu peace treaty. On the onset of World War II, Estonia was annexed by the Soviet Union in the form of Estonian SSR, as part of the overall occupation of the Baltic States. Soon it was overtaken by the Nazi Germany and re-occupied by the Soviet Union for the period of 1944–1991. After Estonia regained its independence from the Soviet Union following the Singing Revolution, Estonian and Russian negotiators reached a technical agreement on the Estonia–Russia border in December 1996, with the border remaining substantially the same as the one drawn by Joseph Stalin,