When did Russia sign a peace treaty with Germany

March 3rd 1918

Reason:

Russia wanted to withdrawal from the war, WWI resulted in Russia losing major territorial holdings. In the treaty, Bolshevik Russia ceded the Baltic States to Germany; they were meant to become German vassal states under German princelings.

March 3, 1918,

Explanation:

The Treaty of Brest-Litovsk was a peace treaty signed on March 3, 1918, between the new Bolshevik government of Soviet Russia and the Central Powers (Germany, Austria-Hungary, Bulgaria, and the Ottoman Empire), that ended Russia's participation in World War I.