The 113th Field Artillery Regiment is a field artillery regiment of the United States Army National Guard.
The 129th Field Artillery Regiment is a regiment of the Field Artillery Branch of the United States Army. Only the 1st Battalion is constituted as an active unit, and is assigned to the Missouri Army National Guard, with its headquarters in Maryville, Missouri, and has subordinate elements located in armories in Albany, Independence, and Chillicothe, Missouri. As a part of the Missouri National Guard, the 1st Battalion, 129th FA is a subordinate unit of the 130th Field Artillery Brigade located in Manhattan, Kansas.
The 4th Field Artillery Regiment is a Field Artillery Branch regiment of the United States Army first formed in 1907.
The 10th Field Artillery Regiment was a Field Artillery regiment of the United States Army first formed in 1916. Due to the inactivation of the Third Armored Brigade Combat Team, 3rd Infantry Division, the last active battalion of the 10th Field Artillery Regiment was inactivated in December 2015.
The 13th Field Artillery Regiment is a field artillery regiment of the United States Army first formed in 1916.
The 17th Field Artillery Regiment is a field artillery regiment of the United States Army first formed in 1916.
The 18th Field Artillery Regiment is a field artillery regiment of the United States Army first formed in 1916.
The 21st Field Artillery Regiment is a field artillery regiment of the United States Army first formed in 1916. A parent regiment under the U.S. Army Regimental System, all components of the regiment are currently inactive. The 1st Battalion 21st Field Artillery Regiment, the regiment's final active component, deactivated on June 12, 2014.
The 22nd Field Artillery Regiment is a Field Artillery regiment of the United States Army.
The 28th Field Artillery Regiment is a field artillery regiment of the United States Army, first constituted in 1918 in the National Army (USA).
The 31st Field Artillery Regiment is a field artillery regiment of the United States Army, first Constituted in 1918 in the National Army (USA). The 1st Battalion, 31st Field Artillery, was constituted 5 July 1918 in the National Army as the 31st Field Artillery and assigned to the 11th Division. The "Proud American" Battalion was organized at Camp George G. Meade, Maryland 6 August 1918 but relieved thereafter from its assignment to the 11th Division on 30 September 1918. The unit demobilized 9 December 1918 at Camp George G. Meade, Maryland. On 22 July 1929, 31st FA was reconstituted in the Regular Army and assigned to the 2nd Division but was, once again, later relieved on 1 January 1930 from its assignment to the 2nd Division. The "Proud American" Battalion was subsequently assigned to the 7th Division on 1 July 1940 and activated at Camp Ord, California where it was reorganized and re-designated as the 31st Field Artillery Battalion on 1 October 1940. It underwent another reorganization and re-designation on 1 July 1957 as the 31st Field Artillery, "Always First," which was a parent regiment under the Combat Arms Regimental System. 31st FA was then withdrawn from the Combat Arms Regimental System 16 March 1989, reorganized under the United States Army Regimental System, and transferred to the United States Army Training and Doctrine Command (TRADOC). The unit was re-designated as the 31st Field Artillery Regiment on 1 October 2005 and began the reactivation process on 1 October 2010, attaining operational capacity under the 434th Field Artillery Brigade and activated on 11 January 2011. The "Proud American" Battalion is credited with participating in multiple campaigns in World War II and the Korean War. It has been distinguished with several decorations, to include the Philippine Presidential Unit Citation and the Republic of Korea Presidential Unit Citation that was awarded on three separate occasions.
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.
The 43rd Air Defense Artillery Regiment is an air defense artillery regiment of the United States Army first constituted 1918 in the Regular Army.
The 35th Field Artillery Regiment is a field artillery regiment of the United States Army.
The 38th Field Artillery Regiment is a field artillery regiment of the United States Army.
The 39th Field Artillery Regiment is a field artillery regiment of the United States Army.
The 80th Field Artillery Regiment is a field artillery regiment of the United States Army.
The 81st Field Artillery Regiment is a field artillery regiment of the United States Army.
The 51st Coast Artillery Regiment was a Coast Artillery regiment in the United States Army.
The 196th Infantry Regiment is an infantry regiment of the United States Army National Guard. It traces its lineage to units which have been both infantry and engineers.
United States 
