77th Field Artillery Regiment ( United States ) The 77th Field Artillery Regiment is a field artillery regiment of the United States Army . First constituted 1916 in the Regular Army as a cavalry regiment . Reorganized in 1917 as field artillery and given its current designation . Lineage . Constituted 1 July 1916 in the Regular Army as the 19th Cavalry Organized 23 May - 11 June 1917 at Fort Ethan Allen , Vermont Converted and redesignated 1 November 1917 as the 77th Field Artillery Assigned 19 November 1917 to the 4th Division Inactivated 21 September 1921 at Camp Lewis , Washington Relieved 24 March 1923 from assignment to the 4th Division and assigned to the 7th Division Relieved 1 January 1930 from assignment to the 7th Division and assigned to the 4th Division ( 1st Battalion activated 1 January 1935 at Fort Sill , Oklahoma ) Activated ( less 1st Battalion ) 1 November 1935 at Fort D . A . Russell , Texas Relieved 16 October 1939 from assignment to the 4th Division Regiment broken up 24 February 1944 and its elements reorganized and redesignated as follows : Headquarters and Headquarters Battery as Headquarters and Headquarters Battery , 77th Field Artillery Group ; 1st and 2d Battalions as the 634th and 631st Field Artillery Battalions , respectively After 24 February 1944 the above units underwent changes as follows : Headquarters and Headquarters Battery , 77th Field Artillery Group , inactivated 25 September 1945 in Italy Activated 27 August 1951 at Fort Sill , Oklahoma Inactivated 25 September 1956 at Fort Sill , Oklahoma 634th Field Artillery Battalion redesignated 15 May 1945 as the 77th Field Artillery Battalion Inactivated 4 January 1946 at Camp Kilmer , New Jersey Headquarters and Headquarters Battery , 77th Field Artillery Battalion , redesignated 1 August 1946 as the 77th Field Artillery Battery and activated at Fort Winfield Scott , California ( organic elements of the 77th Field Artillery Battalion concurrently disbanded ) 77th Field Artillery Battery inactivated 25 November 1946 at Fort Winfield Scott , California Redesignated 19 March 1948 as the 77th Armored Field Artillery Battery Redesignated 1 February 1949 as the 77th Field Artillery Battery and activated in Austria Inactivated 31 July 1955 in Austria Redesignated 20 December 1956 as Headquarters and Headquarters Battery , 634th Field Artillery Rocket Battalion ( organic elements of former 77th Field Artillery Battalion concurrently reconstituted as elements of the 634th Field Artillery Rocket Battalion ) Battalion activated 1 January 1957 at Fort Hood , Texas Inactivated 26 June 1958 at Fort Hood , Texas 631st Field Artillery Battalion inactivated 8 September 1945 in Italy Redesignated 4 November 1946 as the 85th Field Artillery Battalion Assigned 1 July 1948 to the 10th Infantry Division and activated at Fort Riley , Kansas Inactivated 1 July 1957 in Germany and relieved from assignment to the 10th Infantry Division Headquarters and Headquarters Battery , 77th Field Artillery Group ; 634th Field Artillery Rocket Battalion ; and the 85th Field Artillery Battalion consolidated 27 June 1958 to form the 77th Artillery , a parent regiment under the Combat Arms Regimental System Redesignated 1 September 1971 as the 77th Field Artillery Withdrawn 17 August 1986 from the Combat Arms Regimental System and reorganized under the United States Army Regimental System Redesignated 1 October 2005 as the 77th Field Artillery Regiment A Gold color metal and enamel device 1 1 / 8 inches ( 2 . 86 cm ) in height overall consisting of a shield blazoned as follows : Gules , five fleurs - de - lis , three and two , Or ; on a chief dovetailed at the last a prickly pear cactus Proper ; and attached below the shield a Gold scroll inscribed “ EN GARDE ” in Red . The shield is red for artillery . The yellow dovetailed chief symbolizes the formation of the organization from cavalry . The cactus indicates service as cavalry on the Mexican border . The five fleurs - de - lis signify the five major engagements in France in World War I as artillery . The distinctive unit insignia was originally approved for the 77th Field Artillery Regiment on 10 December 1929 . It was redesignated for the 634th Field Artillery Battalion on 28 July 1944 . It was redesignated for the 77th Artillery Regiment on 16 December 1958 . It was redesignated effective 1 September 1971 , for the 77th Field Artillery Regiment . The insignia was amended to update and clarify the description and symbolism on 12 August 1985 .