Mar Det CVA 42

**Marine Detachment, USS Franklin D. Roosevelt (CVA-42):** The Marine Detachment (MarDet) aboard USS Franklin D. Roosevelt (CVA-42) was established following the carrier’s commissioning in 1945. MarDet personnel provided shipboard security, manned secondary batteries, and conducted ceremonial duties throughout the ship’s deployments. Throughout the Cold War, including operations in the Mediterranean and the Atlantic, the MarDet played a crucial role in maintaining discipline and readiness aboard the vessel. The detachment remained active until the carrier’s decommissioning in 1977, upholding the proud tradition of Marines serving at sea.