California State Military
Department
Organized and Federally recognized 6 May 1929 in the California National Guard at Santa Rosa as Company K, 184th Infantry, an element of the 40th Division
Inducted into Federal service 3 March 1941 at Santa Rosa (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
Expanded and redesignated 5 August 1946 as the 579th Engineer Battalion and assigned to the 49th Infantry Division
Reorganized and Federally recognized 16 June 1947 with Headquarters at Santa Rosa
Reorganized and redesignated 1 February 1953 as the 579th Engineer Battalion
Relieved 29 January 1968 from assignment to the 49th Infantry Division
- Aleutian Islands
Eastern Mandates (with arrowhead)
Leyte (with arrowhead)
Ryukyus
Company A (Chico) additionally entitled to:
World War I
- Silver band without inscription
Company D (Petaluma) additionally entitled to:
War with Spain
- Manila
Philippine Insurrection
- Manila
World War I
- St. Mihiel
Meuse-Argonne
World War II - European, African and Middle Eastern Theater
- Central Europe
World War II - Asiatic and Pacific Theater
- Bismarck Archipelago
Luzon
Southern Philippines