51st Infantry Regiment ( United States ) The 51st Infantry Regiment is a regiment of the United States Army first established in 1917 . The regiment ' s crest shows a wreath of the colors ( Or and Azure ) a ragged tree trunk eradicated Proper . The shield is blue for Infantry , with the bend taken from the coat of arms of Alsace . The ragged tree trunk symbolizes the Meuse - Argonne operations . Lineage . The 51st Infantry Regiment was constituted 15 May 1917 at Chickamauga Park , Georgia , then assigned on 16 November 1917 to the 6th Infantry Division . It was inactivated 22 September 1921 at Camp Grant , Illinois . It was relieved on 15 August 1927 from assignment to the 6th Division and assigned to the 9th Infantry Division ; relieved 1 October 1933 from assignment to the 9th Division and assigned to the 6th Division ; then relieved 16 December 1940 from assignment to the 6th Division . The regiment was reactivated 15 April 1941 at Pine Camp , New York , as the 51st Infantry ( Armored ) , an element of the 4th Armored Division , then redesignated 1 January 1942 as the 51st Armored Infantry . Company F . Following World War II , Company F of the regiment was reorganized and redesignated on 1 May 1946 as Company C , 10th Constabulary Squadron , an element of the 14th Constabulary Regiment , United States Constabulary in Germany . It was inactivated 20 December 1948 in Germany ; concurrently converted and redesignated as Company C , 10th Armored Infantry Battalion , an element of the 4th Armored Division , then redesignated 25 February 1953 as Company C , 510th Armored Infantry Battalion , an element of the 4th Armored Division . The company was activated on 15 June 1954 at Fort Hood , Texas and inactivated there on 1 April 1957 , Texas . Concurrently , the 510th Armored Infantry Battalion was relieved from assignment to the 4th Armored Division with the reorganization of Army combat forces into the Pentomic concept . The lineage of Company F was redesignated on 1 July 1959 as Headquarters and Headquarters Company , 6th Battle Group , 51st Infantry but remained inactive . It was redesignated again on 11 August 1967 , this time as Company F , 51st Infantry and activated on 25 September 1967 in Vietnam with the reflagging of the 196th Long Range Reconnaissance Patrol Detachment , Americal Division , The lineage of F - 51st was inactivated on 26 December 1968 in Vietnam when the unit was reflagged as Company G , 75th Infantry ( separate lineage and honors ) . Company F was reactivated 16 December 1986 as VII Corps ' Long Range Surveillance Company ( LRS ) in Germany , serving there unit 15 November 1991 , when it was inactivated . It was reactivated on 16 April 1995 as the LRS company of the 525th Military Intelligence Brigade ( Airborne ) , Fort Bragg , North Carolina , then redesignated on 1 October 2005 as Company F , 51st Infantry Regiment . The colors were inactivated on 15 March 2009 at Fort Bragg when the company was reflagged as Troop C ( LRS ) , 1st Squadron , 38th Cavalry Regiment , 525th Battlefield Surveillance Brigade . With this reorganization of the 525th , Troop C became the only Airborne unit in the brigade . The lineage of Company F was assigned on 16 January 2011 to the 1st Brigade Combat Team , 1st Armored Division , and activated at Fort Bliss , Texas , as the anti - tank element of the 1st Stryker Brigade Combat Team , 1st Armored Division . Company F is operating the M1134 Anti - Tank variant of the basic Stryker system . Company E . Company E , 51st Infantry was active in Germany from 1986 as V Corps ' Long Range Surveillance company . Company E ( LRS ) saw several deployments to Kosovo and two deployments in support of the invasion and occupation of Iraq . It was inactivated in April 2007 . 1st Battalion . HHC , 1st Battalion , 51st Infantry , bearing the lineage of the former Company A , 51st Infantry , was reassigned from the 4th Armored Division in 1957 to the 2d Armored Division in Germany . In 1963 the unit was reassigned to the 4th Armored Division . On May 10 , 1971 , the colors of the 4th Armored Division were inactivated and the unit was reflagged as the 1st Armored Division ; concurrently , the 1st Battalion was assigned to the 1st Armored Division . The 1st Battalion ( Mechanized ) , 51st Infantry ; the 1st Battalion , 6th Infantry ; and the 2d Battalion , 37th Armor formed the maneuver elements of the 1st Brigade , 1st Armored Division at McKee Barracks in Crailsheim . The unit salute greeting was " Fixed Bayonets . " The 1st Battalion ( Mechanized ) , 51st Infantry was inactivated on June 16 , 1984 , when the 1st Armored Division converted to the Division 86 force structure . Under this structure , each heavy division decreased by one infantry battalion while remaining infantry battalions gained one additional rifle company . On April 10 , 1984 Company C , 1 - 51st moved from McKee Barracks to Storck Barracks , Illesheim and was reflagged as Company D , 1st Battalion , 6th Infantry . On April 24 , 1984 , Company A , 1 - 51st moved from McKee Barracks , to Warner Barracks , Bamberg and was reflagged as Company D , 1st Battalion , 54th Infantry . On May 1 , 1984 , Company B , 1 - 51st moved to Ferris Barracks , Erlangen and was reflagged as Company D , 2d Battalion , 6th Infantry . Once the infantry companies moved , the battalion scout platoon moved to Storck Barracks , Illesheim and became the Scout Platoon , HHC , 1st Brigade . HHC and Combat Support Company ( CSC ) assets and personnel were reassigned and remaining equipment turned in or laterally transferred . A gold metal and enamel device 1 5 / 32 inches ( 2 . 94 cm ) in height overall consisting of a shield blazoned : Azure , a bend Or . Attached below the shield a blue motto scroll inscribed " I SERVE " in gold letters . The shield is blue for Infantry , with the bend taken from the coat of arms of Alsace .