The South Dakota National Guard is celebrating 150 years of service Friday. The organization was formed Jan. 27, 1862, dating back to the Dakota Territory. Units have served in nearly every major war or conflict since the Civil War, as well as assisted with recovery efforts from natural disasters. Adjutant General Maj. Gen. Tim Reisch says the organization is proud to be celebrating the milestone and looks forward to serving the state and nation in the future. He says, "Other than during World War II when there was a total mobilization of the South Dakota National Guard, these past 10 years clearly ranks among the most significant periods of our history." To mark the anniversary, the South Dakota National Guard is planning several celebrations later this year.