Answer :

Final answer:

The Strategic Defense Initiative (SDI) proposed by Reagan had significant implications for the Soviet Union, causing concerns about nuclear deterrence and sparking technological and strategic debates.


Explanation:

Strategic Defense Initiative (SDI), proposed by Reagan, aimed to create a missile defense system using satellites to detect and destroy enemy missiles, impacting the Soviet Union's strategic outlook. The Soviet leaders feared it could undermine nuclear deterrence, leading to increased tensions. Critics doubted SDI's effectiveness, highlighting technological challenges and the potential for an arms race.


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