A nuclear-powered submarine is a type of underwater naval vessel that is powered by a nuclear reactor. The reactor generates heat which produces steam that drives turbines and provides power for propulsion, and other systems on the sub. Nuclear-powered submarines are capable of operating underwater for extended periods without needing to surface for fuel or air, as the nuclear fuel lasts several years and provides a high level of sustained power. This type of submarine is commonly used for both military and scientific explorations.
Nuclear deterrence
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A military [doctrine], possibly derived from the MAD concept, involving the idea that an enemy will be deterred from using a [nuclear weapon] as long as he can be destroyed as a [consequence].
Nuclear deterrence meaning & definition 1 of Nuclear deterrence.
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