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The main advantage to having nuclear powered submarines is that a nuclear powered submarine can, if designed wisely, stay submerged for months on end. The only limitation really is food and the crew's psychological state.

This is extremely useful in nuclear deterrance considering that a nation can send out nuclear powered, nuclear weapon equipped submarines on patrol for use in case of a nuclear exchange. If an attacking nation destroys the missiles silos of it's target and it's nuclear armed bomber wings, the defending nation would still have the use of it's nuclear weapons onboard it's ballistic missile submarines.

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16y ago

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