Columbia subject headings:
Harvard subject headings:
Soviet Union--Armed Forces--Political activity.
Soviet Union--History--Revolution, 1917-1921.
Soviet Union. Raboche-Krestʹi︠a︡nskai︠a︡ Krasnai︠a︡ Armii︠a︡--History.
Princeton subject headings:
Soldiers--Russia (Federation)--Ural Mountains Region.
Soldiers--Russia (Federation)--Volga River Valley.
Ural Mountains Region (Russia)--History--Revolution, 1917-1921.
Volga River Valley (Russia)--History.