Columbia subject headings:
Harvard subject headings:
Berlin (Germany)--History--1945-1990
Cold War.
Europe--History--20th century.
Korean War, 1950-1953.
World War III.
World politics--1945-1955
Princeton subject headings:
Cold War.
Europe--History--20th century.
Korean War, 1950-1953.
World politics--1945-1955.