The '''UGM-73 Poseidon''' is a [[United States]] [[submarine]]-based intermediate-range two-stage missile with a nuclear warhead. It was the second of the United States submarine-based nuclear weapons delivery systems, replacing the [[UGM-27 Polaris]]. It had the same range as the Polaris, but was more accurate. It was replaced by the [[Trident I]] in 1979.
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The '''UGM-73 Poseidon''' is a [[United States]] [[submarine]]-based [[IRBM|intermediate-range]] two-stage missile with a nuclear warhead. It was the second of the United States submarine-based nuclear weapons delivery systems, replacing the [[UGM-27 Polaris]]. It had the same range as the Polaris, but was more accurate. It was replaced by the [[Trident I]] in 1979.