Columbia subject headings:
Air defenses--Soviet Union--History.
Air defenses--United States--History.
Ballistic missile defenses--Soviet Union--History.
Ballistic missile defenses--United States--History.
Strategic forces--Soviet Union--History.
Strategic forces--United States--History.
Harvard subject headings:
Air defenses--Soviet Union--History.
Air defenses--United States--History.
Ballistic missile defenses--Soviet Union--History.
Ballistic missile defenses--United States--History.
Strategic forces--Soviet Union--History
Strategic forces--United States--History.
Princeton subject headings: