21st Field Artillery Regiment ( United States ) The 21st Field Artillery Regiment is an Field Artillery regiment of the United States Army first formed in 1916 . History . The 21st Field Artillery was Constituted 1 July 1916 in the Regular Army . Lineage . Constituted 1 July 1916 in the Regular Army as the 21st Field Artillery Organized 1 June 1917 at Camp Wilson , Texas Assigned 12 December 1917 to the 5th Division Relieved 4 November 1920 from assignment to the 5th Division Inactivated 23 September 1921 at Camp Bragg , North Carolina Assigned 24 March 1923 to the 9th Division Relieved 1 January 1930 from assignment to the 9th Division and assigned to the 5th Division ( later redesignated as the 5th Infantry Division ) Activated 6 October 1939 at Fort Knox , Kentucky Reorganized and redesignated 1 October 1940 as the 21st Field Artillery Battalion Inactivated ( less Batteries B and C ) 20 September 1946 at Ladd Field , Alaska ( Batteries B and C concurrently inactivated at Camp Campbell , Kentucky ) Activated 3 June 1948 at Fort Jackson , South Carolina Inactivated 30 April 1950 at Fort Jackson , South Carolina Activated 1 March 1951 at Indiantown Gap Military Reservation , Pennsylvania Inactivated 1 September 1953 at Indiantown Gap Military Reservation , Pennsylvania Activated 25 May 1954 in Germany Relieved 1 June 1957 from assignment to the 5th Infantry Division ; concurrently , reorganized and redesignated as the 21st Artillery , a parent regiment under the Combat Arms Regimental System Redesignated 1 September 1971 as the 21st Field Artillery Withdrawn 16 March 1987 from the Combat Arms Regimental System and reorganized under the United States Army Regimental System Redesignated 1 October 2005 as the 21st Field Artillery Regiment A Gold color metal and enamel device 1 3 / 32 inches ( 2 . 78 cm ) in height overall consisting of a shield blazoned : Argent a bend Gules , in base an eagle close of the last gorged with a collar Or bearing a Lorraine cross of the second . On a sinister canton of the second a demi - sun Gold charged with an Aztec banner Vert garnished of the field ( for the 3rd Field Artillery ) . The regiment was formed from the 3rd Field Artillery which is shown on the canton . The red bend denotes artillery support . The eagle with collar , one of the supporters of the arms of St . Mihiel , symbolizes the most important engagement in which the regiment participated . The distinctive unit insignia was originally approved for the 21st Field Artillery Regiment on 27 November 1939 . It was redesignated for the 21st Field Artillery Battalion on 13 December 1940 . The insignia was redesignated for the 21st Artillery Regiment on 30 August 1957 . Effective 1 September 1971 , the insignia was redesignated for the 21st Field Artillery Regiment . Argent a bend Gules , in base an eagle close of the last gorged with a collar Or bearing a Lorraine cross of the second . On a sinister canton of the second a demi - sun Gold charged with an Aztec banner Vert garnished of the field ( for the 3rd Field Artillery ) . On a wreath of the colors Argent and Gules , a dolphin embowed Argent . Coat of arms . Motto PROGRESSI SUNT ( They Have Advanced ) . The regiment was formed from the 3rd Field Artillery which is shown on the canton . The red bend denotes artillery support . The eagle with collar , one of the supporters of the arms of St . Mihiel , symbolizes the most important engagement in which the regiment participated . The dolphin represents overseas service . The coat of arms was originally approved for the 21st Field Artillery Regiment on 5 February 1921 . It was amended to correct the blazon on 20 May 1921 . It was redesignated for the 21st Field Artillery Battalion on 13 December 1940 . The insignia was redesignated for the 21st Artillery Regiment on 30 August 1957 . Effective 1 September 1971 , the insignia was redesignated for the 21st Field Artillery Regiment . Campaign Participation Credit . World War I : St . Mihiel ; Lorraine 1918 World War II : Normandy ; Northern France ; Rhineland ; Ardennes - Alsace ; Central Europe Vietnam : Defense ; Counteroffensive ; Counteroffensive , Phase II ; Counteroffensive , Phase III ; Tet Counteroffensive ; Counteroffensive , Phase IV ; Counteroffensive , Phase V ; Counteroffensive , Phase VI ; Tet 69 / Counteroffensive ; Summer - Fall 1969 ; Winter - Spring 1970 ; Sanctuary Counteroffensive ; Counteroffensive , Phase VII ; Consolidation I ; Consolidation II ; Cease - Fire Southwest Asia : Defense of Saudi Arabia ; Liberation and Defense of Kuwait War on Terrorism : Campaigns to be determined Decorations . Presidential Unit Citation ( Army ) for PLEIKU PROVINCE Valorous Unit Award for FISH HOOK Meritorious Unit Commendation ( Army ) for VIETNAM 1967 Meritorious Unit Commendation ( Army ) for SOUTHWEST ASIA 1990 - 1991