Strategic Defense Initiative

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From the UAP Encyclopedia, the open encyclopedia of UFO and UAP history · 🏛️ Program or study

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Strategic Defense Initiative

Strategic Defense Initiative logo. Photo: Missile Defense Agency, USA (www.mda.mil), first uploaded by Wikifreund , Germany · Public domain · via Wikimedia Commons

Type	Program or study
Also known as	SDI, Star Wars
On the Timeline	2 events, 1989–2013

The Strategic Defense Initiative (SDI) was a missile defence program announced by President Ronald Reagan in March 1983. Nicknamed "Star Wars", it aimed to develop space- and ground-based systems, including lasers and interceptors, to destroy incoming Soviet nuclear missiles.

Outcome

Lockheed built this unflown antiballistic missile (ABM) test vehicle for the U.S. Army's Homing Overlay Experiment (HOE). The HOE vehicle was… — Lockheed built this unflown antiballistic missile (ABM) test vehicle for the U.S. Army's Homing Overlay Experiment (HOE). The HOE vehicle was… Photo: Cliff · CC BY 2.0 · via Wikimedia Commons

SDI funded much research but never deployed its most ambitious systems. In 1993 it was reorganised into the Ballistic Missile Defense Organization, the forerunner of today's Missile Defense Agency.

In UFO lore

Excalibur was a proposed x-ray laser based anti-missile technology. It used a nuclear warhead surrounded by a number of metal rods that acted to… — Excalibur was a proposed x-ray laser based anti-missile technology. It used a nuclear warhead surrounded by a number of metal rods that acted to… Photo: Lawrence Livermore National Laboratory · Public domain · via Wikimedia Commons

Because Reagan spoke several times about how an alien threat would unite humanity, some writers have suggested SDI was secretly intended to defend against UFOs. There is no evidence for this, and historians see SDI as a response to the Soviet nuclear threat.

On the UAP Timeline

Official portrait photograph of Ronald Reagan, 1981 — Official portrait photograph of Ronald Reagan, 1981 Photo: Michael Evans · Public domain · via Wikimedia Commons

Moriches Bay crash claim (28 September 1989) — An anonymous colonel claims a Star Wars weapon downed a UAP in Long Island's Moriches Bay.
Brilliant Buzzard (June 2013) — A researcher claims Project Brilliant Buzzard was used to track objects during SDI.

Connected articles

References

Strategic Defense Initiative — Wikipedia · en.wikipedia.org · archived copy

Categories: John ford | Program | Ronald reagan | Unidentified anomalous phenomena | Unidentified flying object

This page was last edited on 29 October 2026. Articles are written in our own words from the sources listed under References; disputed claims are attributed to the people who made them.

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