Columbia subject headings:
Mercenary troops--Ukraine, Western.
Ukraine--History--Revolution, 1917-1921.
Ukraïnsʹka halyt︠s︡ʹka armii︠a︡--History.
Zakhidno-Ukraïnsʹka Narodna Respublika--History.
Harvard subject headings:
Mercenary troops--Ukraine--History--20th century.
Soldiers--Ukraine--Biography
Ukraine--History--Revolution, 1917-1921--Participation, Foreign.
Ukraïnsʹka halyt︠s︡ʹka armii︠a︡--History.
Princeton subject headings: