Question: What type of gesture does Donets-Krivoy Rog Soviet Republic and have in common?
Related documents: [0]  [DOC] The Treaty of Brest-Litovsk was a peace treaty signed on 3 March 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. The treaty was signed at Brest-Litovsk (Polish: "Brześć Litewski" ; since 1945 Brest), after two months of negotiations. The treaty was agreed upon by the Bolshevik government under threat of further advances by German and Austrian forces. According to the treaty, Soviet Russia defaulted on all of Imperial Russia's commitments to the Triple Entente alliance. [END] 
[1]  [DOC] The Donetsk–Krivoy Rog Soviet Republic (Russian: Донецко-Криворожская советская республика ) was a self-declared Soviet republic of the Russian SFSR founded on 12 February 1918. The republic claimed "self-determined" territories in treaties of Brest-Litovsk; it was founded three days after the government of Ukraine signed the treaty with Germans, which recognised the borders of Ukrainian People's Republic, within which the Donetsk-Krivoy Rog Soviet Republic was located. On 29 March 1918 it became a republic within Ukrainian Soviet Republic, where it was merged with Ukrainian People's Republic of Soviets (capital in Kharkov, founded 25 December 1917) and Odessa Soviet Republic (founded 1 March 1918), until the last was fully occupied by the German forces according to treaties of Brest-Litovsk. [END] 
Answer: 
signed
signed