Strategic Defense Initiative

E16701

The Strategic Defense Initiative was a controversial Cold War-era U.S. missile defense program proposed in the 1980s that aimed to develop space- and ground-based systems to protect against nuclear ballistic missile attacks.


Statements (50)
Predicate Object
instanceOf Cold War military program
United States defense program
missile defense program
aimedTo develop missile defense system against ballistic nuclear missiles
render nuclear ballistic missiles less effective or obsolete
announcedBy Ronald Reagan
announcedIn televised national address
announcedOn 1983-03-23
budget tens of billions of U.S. dollars
colloquialName Star Wars
controversialFor high projected costs
potential to destabilize nuclear deterrence
technical feasibility concerns
country United States
criticizedBy Soviet leadership
many arms control advocates
many scientists and engineers
evolvedInto Ballistic Missile Defense Organization
Missile Defense Agency
focus strategic ballistic missile defense
governingBody Strategic Defense Initiative Organization
includedComponent advanced radar systems
command, control, and communications systems
directed-energy weapons research
ground-based interceptors
space-based interceptors
space-based sensors
influenced later U.S. national missile defense programs
post–Cold War missile defense policy
legalContext Anti-Ballistic Missile Treaty
mediaNicknameGivenBy critics
mediaNicknameReason resemblance to science-fiction space warfare in Star Wars films
overseenBy United States Department of Defense
peakActivity mid-1980s
politicalContext U.S.–Soviet arms race
nuclear deterrence debate
raisedConcernAbout compliance with Anti-Ballistic Missile Treaty
researchArea boost-phase interception
kinetic kill vehicles
laser weapons
midcourse interception
particle beam weapons
space-based battle stations
terminal-phase interception
shortName SDI
status never fully deployed as originally envisioned
supportedBy Ronald Reagan administration
U.S. defense hawks
timePeriod 1980s
Cold War


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