The 64th Armor Regiment is an armor regiment of the United States Army, organized under the United States Army Regimental System. It is descended from the 758th Tank Battalion (Light) that served in the Italian campaign during World War II. Redesignated as the 64th Tank Battalion, it was assigned to the 3rd Infantry Division during the Korean War and it spent most of the Cold War stationed in West Germany before elements were transferred to Ft. Stewart, Georgia in the late 1990s. The regiment participated in Desert Shield, Desert Storm, Desert Fox, Desert Spring, Operation Iraqi Freedom and Operation Enduring Freedom.

The United States Army Regimental System (USARS) is an organizational and classification system used by the United States Army. It was established in 1981 to replace the Combat Arms Regimental System (CARS) to provide each soldier with continuous identification with a single regiment, and to increase a soldier's probability of serving recurring assignments with their regiment. The USARS was intended to enhance combat effectiveness by providing the opportunity for a regimental affiliation, thus obtaining some of the benefits of the traditional regimental system.