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USS South Dakota, a Virginia-class attack submarine, returns to Groton following a 6-month deployment. The submarine is part of Submarine Squadron 4 and operates within the Atlantic Fleet, focusing on intelligence collection and strategic deterrence.

Equipped with advanced sonar systems and armed with Mk 48 torpedoes and Tomahawk missiles, it supports anti-submarine and anti-surface warfare. The deployment underscores U.S. commitments to maritime security and peer competition in global waters.