Columbia subject headings:
Command and control systems--United States.
First strike (Nuclear strategy)
Missile attack warning systems--United States.
United States--Military policy.
Harvard subject headings:
Command and control systems--United States.
First strike (Nuclear strategy)
Missile attack warning systems--United States.
United States--Military policy.
Princeton subject headings:
Command and control systems--United States.
First strike (Nuclear strategy)
Missile attack warning systems--United States.
United States--Military policy.