Question: What type of gesture does Donets-Krivoy Rog Soviet Republic and have in common?
Sentence (from "Donets-Krivoy Rog Soviet Republic"): 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.
Relevant evidence: No