CMH Home
Lineage And Honors Information

Lineage and Honors Information as of 6 September 2012


  • Organized 1884-1885 in the Dakota Territorial Militia as the 2d Regiment
  • (Territory of Dakota reorganized 2 November 1889 as the states of North and South Dakota)
  • (Organized Militia of South Dakota redesignated 6 March 1893 as the South Dakota National Guard)
  • Redesignated 9 September 1893 as the 1st Regiment
  • Mustered into Federal service 12-19 May 1898 at Sioux Falls as the 1st South Dakota Volunteer Infantry; mustered out of Federal service 5 October 1899 at the Presidio of San Francisco, California
  • Reorganized 11 April 1901 in the South Dakota State Guard as the 1st Regiment; 2d Regiment organized August 1901-August 1902
  • 1st and 2d Regiments reorganized and redesignated 17 March 1903 in the South Dakota National Guard as the 2d and 3d Regiments, respectively
  • 2d and 3d Regiments consolidated 16 May 1905 to form the 4th Infantry
  • Mustered into Federal service 30 June 1916; mustered out of Federal service 3 March 1917 at Fort Crook, Nebraska
  • Called into Federal service 15 July 1917; drafted into Federal service 5 August 1917
  • Consolidated 2 October 1917 with Batteries A and B, Oregon Field Artillery, to form the 147th Field Artillery and assigned to the 41st Division
  • Demobilized 23 May 1919 at Camp Dodge, Iowa
  • Former 4th Infantry reorganized in part 10 November 1922 in east-central South Dakota as the 2d Battalion, 136th Engineer Regiment (remainder of regiment reorganized as the 147th Field Artillery—hereafter separate lineage)
  • Expanded, reorganized, and redesignated 1 May 1924 as the 109th Engineer Regiment, with Headquarters at Rapid City, and assigned to the 34th Division (later redesignated as the 34th Infantry Division)
  • Inducted into Federal service 10 February 1941 at home stations
  • Regiment (less 1st Battalion) reorganized and redesignated 1 February 1942 as the 109th Engineer Battalion, an element of the 34th Infantry Division (1st Battalion concurrently redesignated as the 1st Battalion, 132d Engineers—hereafter separate lineage)
  • Reorganized and redesignated 1 August 1942 as the 109th Engineer Combat Battalion
  • Inactivated 3 November 1945 at Camp Patrick Henry, Virginia
  • Relieved 19 June 1946 from assignment to the 34th Infantry Division
  • Reorganized and Federally recognized 21 May 1947 in the South Dakota National Guard in southwestern South Dakota with Headquarters at Rapid City
  • Ordered into active Federal service 3 September 1950 at home stations
  • (109th Engineer Combat Battalion [NGUS] organized and Federally recognized 3 September 1952 with Headquarters at Rapid City; redesignated 1 October 1953 as the 109th Engineer Battalion [NGUS])
  • Reorganized and redesignated 4 June 1953 as the 109th Engineer Battalion
  • Released from active Federal service 17 December 1954 and reverted to state control; Federal recognition concurrently withdrawn from the 109th Engineer Battalion (NGUS)
  • Headquarters, Headquarters and Service Company, 109th Engineer Battalion, reorganized and redesignated 15 September 1956 as Headquarters and Headquarters Company, 109th Engineer Group (remainder of battalion reorganized as the 109th Engineer Battalion—hereafter separate lineage)
  • Ordered into active Federal service 21 November 1990 at Rapid City; released from active Federal service 17 June 1991 and reverted to state control
  • Ordered into active Federal service 28 April 2004 at Rapid City; released from active Federal service 2 October 2005 and reverted to state control
  • Converted, reorganized, and redesignated 1 September 2008 as Headquarters and Headquarters Detachment, 109th Support Group
  • HOME STATION: Rapid City


  • Philippine Insurrection
  • Manila
  • Malolos
  • World War I
  • Alsace
  • Aisne-Marne
  • Oise-Aisne
  • Meuse-Argonne
  • Lorraine 1918
  • Champagne 1918
  • World War II
  • Algeria-French Morocco
  •    (with arrowhead)
  • Tunisia
  • Naples-Foggia
  • Anzio
  • Rome-Arno
  • North Apennines
  • Po Valley
  • Southwest Asia
  • Defense of Saudi Arabia
  • Liberation and Defense of Kuwait
  • Cease-Fire
  • War on Terrorism
  • Campaigns to be determined
  • (additional campaigns to be determined)


  • Meritorious Unit Commendation (Army), Streamer embroidered AFGHANISTAN 2004-2005
  • French Croix de Guerre with Gilt Star, World War I, Streamer embroidered AISNE-MARNE, OISE-AISNE
  • French Croix de Guerre with Palm, World War II, Streamer embroidered BELVEDERE


Director, Center of Military History

Return to Branch Index