About this Unit
Marine Detachment USS Columbus (CG-12) was a specialized unit of United States Marines assigned to the guided missile cruiser USS Columbus, which served from the early 1960s through the mid-1970s. The detachment’s primary duties included providing security for the ship, manning the ship’s secondary batteries, and performing ceremonial functions. Marines aboard the Columbus often participated in Cold War-era deployments, including Mediterranean cruises and NATO operations, projecting American naval power and presence. The Marine Detachment was eventually disbanded when the Navy phased out such units from most surface combatants in the late 1970s.
Historical Facts
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Marine Detachment Role: The Marine Detachment (MarDet) aboard USS Columbus (CG-12) provided security for the ship, manned ceremonial duties, and operated shipboard armories, reflecting a long-standing naval tradition.
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Flagship Service: USS Columbus often served as the flagship for various admirals, and the Marine Detachment played a key role in official receptions and diplomatic functions on board.
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Cold War Missions: During the height of the Cold War, the Marine Detachment helped safeguard sensitive areas of the ship during Mediterranean and Atlantic deployments, including potential nuclear weapons spaces.
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Shipboard Brig: Marines operated and guarded the ship's brig (jail), handling discipline and detention of sailors, and enforcing order during long deployments.
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Transition Era: The Columbus MarDet witnessed the transition from the traditional heavy cruiser’s gun-centric operations to guided missile roles, adapting to new security needs as the ship was converted to a guided missile cruiser in the late 1950s.
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Ceremonial Duties: Marines from the detachment regularly performed color guard and honor guard services for visiting dignitaries and during port calls in foreign countries.
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Vietnam War Service: The ship and its Marine Detachment participated in operations related to the Vietnam War, providing presence and support in the region during the conflict.
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Last of its Kind: The Marine Detachment on USS Columbus was among the last to serve aboard US Navy cruisers, as the practice of stationing Marines on surface combatants was phased out in the 1970s.
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Integrated Training: Marines trained with Navy personnel in damage control, small arms, and ship defense exercises, ensuring readiness for emergencies and combat scenarios at sea.
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Legacy and Reunion: Former members of the USS Columbus Marine Detachment have held reunions and maintain a strong camaraderie, preserving the unique legacy of their service aboard the historic cruiser.
