Field Artillery Branch (United States) - Organization

Organization

In 1789 after the Revolution there was only one battalion of four companies of artillery. In 1794 a "Corps of Artillerists and Engineers" was organized, which included the four companies of artillery then in service and had sixteen companies in four battalions. In 1802 there was a reduction of the army. The Engineers were separated from the Artillery and the latter formed into one regiment of 20 companies. In 1808 a regiment of ten companies called the "Light Artillery" was formed. In 1812 two more regiments were added.

In 1821 four regiments were created from existing units on the following lines.

• 1st Regiment of Artillery, 2 March 1821
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J- not used?
  • K- added 1832
  • L- added 1847
  • M- added 1847
  • N- added 1899
  • O- added 1899
• 2nd Regiment of Artillery, 2 March 1821
  • Battery A, 2nd U.S. Artillery
• 3rd Regiment of Artillery, 2 March 1821
• 4th Regiment of Artillery, 2 March 1821
  • 4th U.S. Light Artillery, Battery H
  • 4th U.S. Light Artillery, Battery I
  • 4th U.S. Light Artillery, Battery M
• 5th Regiment of Artillery, 4 May 1861
  • 5th U.S. Light Artillery, Battery H
• 6th Regiment of Artillery, 8 March 1898
• 7th Regiment of Artillery, 8 March 1898
• (98 Batteries)

In 1901 the regimental organization of the US Army artillery was abolished, more companies were added, and given numerical designations.

• 126 companies of heavy (coast) artillery
• 30 companies of light (field) artillery

in 1907 the Coast Artillery Corps was established, and the Field Artillery re-regimented

• 1st Field Artillery Regiment (United States)
  • With 2 battalions each with 3 batteries
• 2nd Field Artillery Regiment (United States)
• 3rd Field Artillery Regiment (United States)
• 4th Field Artillery Regiment (United States)
• 5th Field Artillery Regiment (United States)
• 6th Field Artillery Regiment (United States)

In 1916 Congress enacted the National Defense Act and 15 more regiments were authorized.

• 7th Field Artillery Regiment (United States)
• 8th Field Artillery Regiment (United States)
• 9th Field Artillery Regiment (United States)
• 10th Field Artillery Regiment (United States)
• 11th Field Artillery Regiment (United States)
• 12th Field Artillery Regiment (United States)
• 13th Field Artillery Regiment (United States)
• 14th Field Artillery Regiment (United States)
• 15th Field Artillery Regiment (United States)
• 16th Field Artillery Regiment (United States)
• 17th Field Artillery Regiment (United States)
• 18th Field Artillery Regiment (United States)
• 19th Field Artillery Regiment (United States)
• 20th Field Artillery Regiment (United States)
• 21st Field Artillery Regiment (United States)

In 1917 the numbers from 1 through 100 were reserved for the Regular Army, from 101 through 300 for the National Guard, and 301 and above for the National Army. Under this system the 1st through 21st and 76th through 83d were organized in the Regular Army; the 101st through 151st, in the National Guard; and, the 25th through 75th, 84th and 85th, and the 301st through 351st in the National Army.

A 1918 expansion added the 22nd Field Artillery Regiment through the 39th Field Artillery Regiment with some exceptions, notably Philippine Scouts units.

The Coast Artillery Corps constantly reorganized the numbered companies until 1924. but during WWI created 61 regiments from the numbered companies, for service with the AEF. most of these were disbanded immediately after the war. In 1924 the Coast Artillery Corps tried to go back to the regimental system, and numbered companies were returned to letter designations. (in order to promote some esprit-de-corps, the first 7 regiments were linked to the original 7 regiments of artillery). 977 Coast artillery units were created before the branch's demise in 1950.

In 1933 another expansion created numerous serially numbered battalions and many regiments were taken apart and reduced to battalion size, and during WWII a new designation was applied to some units, the "Armored Field Artillery Battalion"

Army Anti-Aircraft Command ARAACOM was created July 1950, and In 1957, ARAACOM was renamed to US Army Air Defense Command (USARADCOM), A new system, the U.S. Army Combat Arms Regimental System, or CARS, was adopted in 1957 to replace the old regimental system. CARS uses the Army's traditional regiments as parent organizations for historical purposes, but the primary building blocks are divisions, and brigades became battalions. Each battalion carries an association with a parent regiment, even though the regimental organization no longer exists. In some brigades several numbered battalions carrying the same regimental association may still serve together, and tend to consider themselves part of the traditional regiment when in fact they are independent battalions serving a brigade, rather than a regimental, headquarters.

In 1968 the Air Defense Artillery Branch (United States Army) was split from the artillery.

The CARS was replaced by the U.S. Army Regimental System (USARS) in 1981. There are exceptions to USARS regimental titles, including the armored cavalry regiments and the 75th Ranger Regiment created in 1986. On 1 October 2005, the word "regiment" was formally appended to the name of all active and inactive CARS and USARS regiments. So, for example, the 1st Cavalry officially became titled the 1st Cavalry Regiment.

During the Cold War the Field Artillery was responsible for all mobile ballistic missile weapons systems, including the Lance and Pershing II ballistic missiles.