Lineages and
Honors of the California National Guard
159th
Infantry Regiment (Fifth California)
Constituted 12 December
1879 in the California National Guard as the 2d Infantry Battalion
and organized from existing companies
Redesignated 30 December
1879 as the 5th Infantry Battalion
Expanded, reorganized,
and redesignated 4 August 1885 as the 5th Infantry Regiment with
Headquarters at San Francisco
(Six companies mustered
into Federal service 6-9 July 1898 at Fruitvale as elements of
the 8th California Volunteer Infantry; mustered out of Federal
service 28 January - 6 February 1899 in Washington and California)
Mustered into Federal
service 28 June 1916 at Sacramento; mustered out of Federal service
7 October 1916 at Sacramento
Drafted into Federal service
5 August 1917
Consolidated 24 September
- 1 November 1917 with the 2d Infantry Regiment (less 2d Battalion,
Companies L and M, and Sanitary Detachment), California National
Guard; consolidated unit reorganized and redesignated as the
159th Infantry and assigned to the 40th Division
Demobilized 1 May 1919
at the Presidio of San Francisco, California
Elements of the former
5th Infantry Regiment reorganized 1920-1921 in the California
National Guard as seven independent companies
Reorganized and redesignated
2 October 1921 as the 159th Infantry and assigned to the 40th
Division; Headquarters Federally recognized 14 June 1922 at Berkeley
(Location of Headquarters
changed 25 March 1931 to Oakland) Inducted into Federal service
3 March 1941 at home stations
Relieved 29 October 1941
from assignment to the 40th Division and assigned to the 7th
Division (later redesignated as the 7th Infantry Division)
Relieved 23 August 1943
from assignment to the 7th Infantry Division
Inactivated 4-6 November
1945 at Camp Shanks, New York, and Camp Kilmer, New Jersey
Assigned 5 August 1946
to the 49th Infantry Division
Reorganized and Federally
recognized 28 January 1947 with Headquarters at Alameda
Reorganized 1 May 1959
as a parent regiment under the Combat Arms Regimental System,
to consist of the 1st and 2d Battle Groups, elements of the 49th
Infantry Division
Reorganized 1 March 1963
to consist of the 1st Battalion, an element of the 49th Infantry
Division, and the 2d Battalion, an element of the 49th Infantry
Brigade
Reorganized 29 January
1968 to consist of the 1st Battalion and the 2d Battalion, an
element of the 49th Infantry Brigade
Reorganized 13 January
1974 to consist of the 1st and 2d Battalions, elements of the
40th Infantry Division
Reorganized 1 November
1976 to consist of the 2d Battalion, an element of the 40th Infantry
Division
Withdrawn 19 January 1988
from the Combat Arms Regimental. System and reorganized under
the United States Army Regimental System, with Headquarters at
San Jose
Campaign
Participant Credit
World War I
Streamer without inscription
World War II
Asiatic-Pacific Theater:
Aleutian Islands
European-African-Middle
Eastern Theater:
Streamer without inscription
Company A (Concord),
2d Battalion, additionally entitled to:
World War II
Asiatic-Pacific Theater:
Bismarck Archipelago Luzon
(with arrowhead)
Southern Philippines
Support Company (Gilroy),
2d Battalion, additionally entitled to:
War with Spain:
Manila
Philippine insurrection:
Manila
World War I:
St. Mihiel
Meuse-Argonne
World War II
Asiatic-Pacific Theater:
Central Pacific
Decorations
Company A (Concord), 2d Battalion, entitled to:
Philippine Presidential
Unit Citation, Streamer embroidered 17 OCTOBER 1944 TO 4 JULY
1945
BY ORDER OF THE SECRETARY
OF THE ARMY:
HAROLD W. NELSON
Brigadier General, United States Army
Chief of Military History
16 December 1991
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