Search Results for: Strategic Defense Initiative

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Strategic Defense Initiative (SDI)

The Strategic Defense Initiative (SDI) is a U.S. research and development program designed to create an effective defense against nuclear-missile attack, initiated by President Reagan in 1983. As envisioned, the system uses a "layered" defense in which enemy missiles would come under continuous attack from the time they are launched to just before they reach their targets, a total of about 30 minutes.

Cold War: A Brief History: Reagan's Star WarsOpen link in new window | (
Missile Defense HistoryOpen link in new window | (
President Reagan Announces the Strategic Defense InitiativeOpen link in new window | (
Ronald Reagan's Strategic Defense InitiativeOpen link in new window | (

See Also:

Ballistic Missile Defense
National Missile Defense
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