Organized 20 December 1912 as the 1st Battalion of Field Artillery, California National Guard with Headquarters at Oakland and with existing batteries as follows:Battery A (organized 29 May 1911 at Los Angeles)
Battery B (organized 31 May 1911 at Oakland)
Battery C (organized 14 December 1912 at Stockton)
Mustered into Federal service 28 June 1916 for Mexican border service; mustered out 21 December 1916 - 6 January 1917
Battery D organized 25 July 1917 at San Diego; Battery E organized 26 July 1917 at Oakland; Battery F organized 25 July 1917 at Los Angeles
Expanded, reorganized, and redesignated 3 August 1917 as the 1st Field Artillery Regiment
Drafted into Federal service 5 August 1917
Reorganized and redesignated 24 September 1917 as the 143d Field Artillery, and assigned to the 40th Division
Demobilized 28 January 1919 at the Presidio of San Francisco, California
Reconstituted in the California National Guard and reorganized 1 November 1921 as the 1st Separate Battalion of Field Artillery, with Headquarters at Oakland
Expanded, reorganized, and redesignated July 1 1924 as the 143d Field Artillery, an element of the 40th Division; Headquarters Federally recognized 30 July 1924 at Oakland
(Location of Headquarters changed 11 October 1928 to Stockton)
Inducted into Federal service 3 March 1941 at Stockton
Regiment broken up 18 February 1942 and its elements reorganized and redesignated as follows:
Regimental Headquarters and 1st Battalion as the 143d Field Artillery Battalion, an element of the 40th Infantry Division
2d Battalion as the 154th Field Artillery Battalion, an element of the 40th Infantry Division
(Headquarters Battery as Headquarters and Headquarters Battery, 204th Field Artillery, hereafter separate lineage)
After 18 February 1942 the above units underwent changes as follows:
143d Field Artillery Battalion relieved 1 September 1942 from assignment to the 40th Infantry Division and assigned to the 27th Infantry Division
Relieved 30 October 1942 from assignment to the 27th Infantry Division and assigned to the 40th Infantry Division
Inactivated 7 April 1946 at Camp Stoneman, California
Reorganized and Federally recognized 22 April 1947 as the 629th Field Artillery Battalion, an element of the 49th Infantry Division, with Headquarters at Alameda, California
164th Field Artillery Battalion relieved 1 September 1942 from assignment to the 40th Infantry Division
Assigned 1 April 1943 to the 40th Infantry Division
Inactivated 7 April 1946 at Camp Stoneman, California
Reorganized and Federally recognized 18 February 1947 as an element of the 49th Infantry Division, with Headquarters at Stockton
164TH, 629TH, 636TH (see ANNEX 1), and 637th (see ANNEX 2) Field Artillery Battalions and the 149th Antiaircraft Artillery Battalion (see ANNEX 3) consolidated , reorganized, and redesignated 1 May 1959 as the 143d Artillery, a parent regiment under the Combat Arms Regimental System to consist of the 1st Rocket Howitzer Battalion and the 2d, 3d, 4th, 5th, and 6th Howitzer Battalions, elements of the 49th Infantry Division
Reorganized 1 March 1963 to consist of the 1st, 2nd, 3d, 4th, and 5th Battalions, elements of the 49th Infantry Division
(3d Battalion, 143d Artillery relieved 4 December 1965 from assignment to the 49th Infantry Division)
Reorganized 29 January 1968 to consist of the 3d Battalion, an element of the 49th Infantry Brigade, and the 1st Battalion, a non divisional unit
Redesignated 1 May 1972 as the 143d Field Artillery
Reorganized 13 January 1974 to consist of the 1st Battalion, an element of the 40th Infantry Division
143D Filed Artillery ANNEX 1 Organized and Federally recognized 14 June 1926 in the California National Guard as Battary D, 143d Field Artillery, an element of the 40th Division, at Sacramento.
Inducted into Federal service 3 March 1941 at Sacramento
Reorganized and redesignated 18 February 1942 as Battery A, 164th Field Artillery Battalion, an element of the 40th Infantry Division
(164th Field Artillery Battalion relieved 1 September 1942 from assignment to the 40th Infantry Division; assigned 1 April 1943 to the 40th Infantry Division)
Inactivated 7 April 1946 at Camp Stoneman, California
Redesignated 5 August 1946 as Headquarters and Headquarters Battery, 636TH Field Artillery Battalion, an element of the 49th Infantry Division
Reorganized and Federally recognized 18 September 1947 at Sacramento (organic elements subsequently organized from existing units)
(ANNEX 2) Constituted 5 August 1945 as the 637th Field Artillery Battalion, allotted to the California Army National Guard, and assigned to the 49th Infantry Division
Organized and Federally recognized 17 February 1947, with Headquarters at San Jose
(ANNEX 3) Constituted 5 August 1946 as the 681st Antiaircraft Artillery Automatic Weapons Battalion and allotted to the California National Guard
Organized and Federally recognized 27th February 1947, with Headquarters at Belmont
(Location of Headquarters changed 14 December 1947 to San Mateo)
Reorganized and redesignated 1 February 1949 as the 149th Antiaircraft Artillery Automatic Weapons Battalion, an element of the 49th Infantry Division
Reorganized and redesignated 1 October 1953 as the 149th Antiaircraft Artillery Battalion
CAMPAIGN PARTICIPATION CREDIT
World War I Streamer without inscription World War II Bismarck Archipeligo Leyte Luzon (with arrowhead) Southern Philippines (with arrowhead) Battery B (Woodland), 1st Battalion, 143d Field Artillery additionally entitled to:
World War II - AP Aleutian Islands Eastern Mandates (with arrowhead) Ryukyus Battery C (Richmond), 1st Battalion, 143d Field Artillery additionally entitled to:
War with Spain Manila
Philippine Insurrection Manila
World War I St. Miniel Meuse-Argonne
Word War II - EAME Central Europe
DECORATIONS Battery A (Lodi), Battery B (Woodland), and Service Battery (Richmond), 1st Battalion, 143d Field Artillery each entitled to:
Philippines Presidential Unit Citation, Streamer embroidered 17 October 1944 to 4 July 1945.