Organized and Federally recognized 12 November 1925 in the California National Guard at Gilroy as Company G, 184th Infantry, an element of the 40th Division
Redesignated 1 June 1930 as Company D, 184th Infantry
Reorganized and redesignated 6 November 1935 as the Howitzer Company, 184th Infantry
Reorganized and redesignated 1 October 1939 as Company B, 184th Infantry
Inducted into Federal service 3 March 1941 at Gilroy
(184th Infantry relieved in June 1942 from assignment to the 40th Division; assigned 23 August 1943 to the 7th Infantry Division)
Inactivated 20 January 1946 in Korea
(184th Infantry relieved 5 August 1946 from assignment to the 7th Infantry Division and assigned to the 49th Infantry Division)
Reorganized and Federally recognized 10 November 1947 at Gilroy as the Heavy Tank Company, 159th Infantry, an element of the 49th Infantry Division
Redesignated in 1948 as the Tank Company, 159th Infantry
Converted and redesignated 1 May 1959 as Company E, 1st Medium Tank Battalion, 149th Armor, an element of the 49th Infantry Division
Redesignated 1 March 1963 as Company C, 4th Medium Tank Battalion, 149th Armor, and relieved from assignment to the 49th Infantry Division
Redesignated 1 April 1964 as Company C, 4th Battalion, 149th Armor
Converted and redesignated 29 January 1968 as Troop C, 170th Cavalry, an element of the 49th Infantry Brigade
Redesignated 1 May 1968 as Troop E, 170th Cavalry, an element of the 49th Infantry Brigade
Converted and redesignated 1 January 1973 as Detachment 1, 670th Military Police Company, and relieved from assignment to the 49th Infantry Brigade
Consolidated 1 January 1976 with the 670th Military Police Company (less Detachment 1) (see ANNEX), and consolidated unit designated as the 670th Military Police Company; location concurrently changed to Sunnyvale
(Detachment 1 organized 30 September 1990 at Eureka)
Ordered into active Federal service 2 May
1992 at Sunnyvale and Eureka; released 9 May 1992 from active
Federal service and
reverted to state control
Annex
Organized and Federally recognized 5 November 1971 in the California Army National Guard at San Mateo as the Service Battery, 3d Battalion, 143d Artillery, an element of the 49th Infantry Brigade
Redesignated 1 May 1972 as the Service Battery, 3d Battalion, 143d Field Artillery
Converted and redesignated 1 January 1973
as the 670th Military Police Company (less Detachment 1) and relieved
from assignment to the 49th Infantry Brigade; location concurrently
changed to Redwood City
HOME STATION: Sunnyvale (less Detachment 1 at Eureka