Columbia subject headings:
Foreign enlistment--United States--History--20th century.
Polish people--Germany--History--20th century.
United States--Armed Forces--Recruiting, enlistment, etc.--World War, 1939-1945.
United States. Air Force. Air Forces in Europe.
United States. Army. Forces in the European Theater.
World War, 1939-1945--Poland.
Harvard subject headings:
Polish people--Germany--History--20th century.
United States. Army. Forces in the European Theater.
United States. Department of the Army--Officials and employees.
Princeton subject headings: