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
Eastern Mandates (with arrowhead)
Leyte (with arrowhead)
Ryukyus
Company A (Chico) additionally entitled to:
World War I
Company D (Petaluma) additionally entitled to:
War with Spain
Philippine Insurrection
World War I
Meuse-Argonne
World War II - European, African and Middle Eastern Theater
World War II - Asiatic and Pacific Theater
Luzon
Southern Philippines