In the 1963 ROAD reorganization 3d Armored Division Combat Command B at Gelnhausen was redesignated as the Second Brigade).

The Battalions served as part of NATO forces guarding the Inner-German Border against the Warsaw Pact.

The 48th Armored Infantry Battalion, along with 1st Battalion, 40th Armor, in particular, fought a tough battle in Vielsalm, Belgium, holding off the German V Panzer Corps for three days at the crossing of the Salm River, during the German Ardennes Offensive (also known as Battle of the Bulge).

The reactivated 48th Infantry's 2nd Battalion initially consisted solely of United States Army Reserves Drill Sergeants.

Constituted 15 May 1917 in the Regular Army as the 48th Infantry Organized 1 June 1917 at Syracuse, New York Assigned 31 July 1918 to the 20th Infantry Division (United States) Relieved 28 February 1919 from assignment to the 20th Division Inactivated 14 October 1921 at Camp Travis, Texas Demobilized 31 July 1922 Reconstituted 27 February 1942 in the Regular Army as the 48th Armored Infantry and assigned to the 7th Armored Division (United States) Activated 2 March 1942 at Camp Polk, Louisiana Regiment broken up 20 September 1943 and its elements reorganized and redesignated as elements of the 7th Armored Division as follows: After 20 September 1943 the above units underwent changes as follows: 48th, 38th, and 23d Armored Infantry Battalions relieved 15 February 1957 from assignment to the 7th Armored Division and consolidated to form the 48th Infantry, a parent regiment under the Combat Arms Regimental System Withdrawn 16 June 1989 from the Combat Arms Regimental System, reorganized under the United States Army Regimental System, and transferred to the United States Army Training and Doctrine Command A Gold color metal and enamel device 1+1⁄8 inches (2.9 cm) in height consisting of a shield blazoned: Per pale Azure and Sable a lion rampant Or, on a canton Argent a chevron wavy of the first.