Submarine Squadron Ten

• Establishment During WWII: Submarine Squadron Ten (SUBRON 10) was established in June 1941 at New London, Connecticut, to train and prepare submarine crews for combat operations during World War II. • Key Role in Atlantic Operations: SUBRON 10 played a vital role in anti-submarine warfare and Atlantic convoy protection during World War II, helping to secure vital shipping lanes from German U-boats. • First Nuclear Submarine Squadron: In 1961, SUBRON 10 became the first all-nuclear submarine squadron in the United States Navy, reflecting the rapid technological shift during the Cold War. • Home to the USS Nautilus: The world’s first operational nuclear-powered submarine, USS Nautilus (SSN-571), was assigned to SUBRON 10, marking a major milestone in naval engineering. • Cold War Deterrence: SUBRON 10 was instrumental in the United States' nuclear deterrence strategy, hosting several nuclear-powered ballistic missile submarines (SSBNs) at its base in New London and later at Groton, CT. • Participation in the Cuban Missile Crisis: SUBRON 10 submarines conducted critical patrols and intelligence-gathering missions during the Cuban Missile Crisis in 1962, contributing to national security at a tense moment in history. • Innovative Training Practices: SUBRON 10 pioneered advanced submarine training techniques, including the use of submarine simulators and rigorous crew certification programs. • Historic Under-Ice Operations: SUBRON 10 units were among the first to conduct under-ice operations in the Arctic region, expanding the operational reach of the U.S. submarine force. • Modernization and Reorganization: Over the decades, SUBRON 10 has adapted to new classes of submarines, such as the Los Angeles, Virginia, and Ohio-class, and continues to support modernization efforts in the submarine fleet. • Ongoing Legacy: Today, SUBRON 10 remains an active and critical component of the U.S. Navy’s submarine force, overseeing the training, maintenance, and deployment of attack submarines from Naval Submarine Base New London.