Columbia subject headings:
Harvard subject headings:
Military bases, American--Greenland.
Strategic materials--Greenland.
United States--Armed Forces--Facilities
United States--Foreign relations
World War, 1939-1945--Campaigns--North Atlantic Ocean
Princeton subject headings:
Military bases, American--Greenland.
United States--Foreign relations--1933-1945.
United States--Foreign relations--Greenland.
World War, 1939-1945--Campaigns--North Atlantic Ocean.