Columbia subject headings:
Harvard subject headings:
Soviet Union--History--Allied intervention, 1918-1920.
Soviet Union--Military relations--United States.
United States--History, Military--20th century.
United States--Military relations--Soviet Union.
Princeton subject headings:
Soviet Union--History--Allied intervention, 1918-1920.
Soviet Union--Military relations--United States.
United States--History, Military--20th century.
United States--Military relations--Soviet Union.