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A comment on The nuclear war America planned to fight over her own cities (2017). Parent comment
The Nike installations were anti-aircraft, not anti-ballistic missile. https://en.wikipedia.org/wiki/Project_Nike
The Safeguard Program was ABM. Since it was infeasible at the time to directly strike an incoming ICBM warhead, the interceptor rockets used nuclear warheads. That way they would only need detonate "close" to the incoming warhead.
Only one Safeguard site was completed, and it was deactivated after the USA and the USSR signed an Anti-Ballistic Missile treaty. https://en.wikipedia.org/wiki/Safeguard_Program
The Nike installations were anti-aircraft, not anti-ballistic missile. https://en.wikipedia.org/wiki/Project_Nike
The Safeguard Program was ABM. Since it was infeasible at the time to directly strike an incoming ICBM warhead, the interceptor rockets used nuclear warheads. That way they would only need detonate "close" to the incoming warhead.
Only one Safeguard site was completed, and it was deactivated after the USA and the USSR signed an Anti-Ballistic Missile treaty. https://en.wikipedia.org/wiki/Safeguard_Program