Answer:
Strategic Defense Initiative (SDI), byname Star Wars, proposed U.S. strategic defensive system against potential nuclear attacks—as originally conceived, from the Soviet Union. The SDI was first proposed by President Ronald Reagan in a nationwide television address on March 23, 1983. The intent of this program was to develop a sophisticated anti-ballistic missile system in order to prevent missile attacks from other countries, specifically the Soviet Union.
Explanation:
It could end the risk of a missile attack.