The South Dakota National Guard has a long and proud history of supporting our state and nation. The SDNG’s origins date back to 1861 as part of the Dakota Territory. Companies A and B of the 1st Dakota Calvary served during the Civil War after President James Buchanan signed the act establishing the Dakota Territory on March 2, 1861. During the 1850’s, the Army had established garrisons at Fort Pierre and Fort Randall. After the start of the Civil War, the Army withdrew three companies from Fort Randall which necessitated raising volunteer militia to support the exposed fort. Captain Nelson Miner formed Company A, Dakota Calvary on January 27, 1862. This date is celebrated as the official birthday for the South Dakota National Guard.

The SD Army National Guard is in 21 communities through the state. It is comprised of three major commands and a state headquarters: the 109th Regional Support Group (RSG) in Rapid City, the 196th Maneuver Enhancement Brigade (MEB) in Sioux Falls, and the 196th Regiment – Regional Training Institute (RTI) in Fort Meade. The Joint Force Headquarters is in Rapid City. The Army National Guard has over 3,000 Soldiers assigned to 57 different organizations, including engineers, artillery, aviation, medical, logistics, maintenance, military police, and signal.