Two members of the South Dakota Air National Guard's 114th Fighter Wing from Sioux Falls team up to fill a sandbag, Saturday, June 4, 2011, at the Dakota Valley High School. Airmen have provided much needed support filling sandbags and constructing levees as the Missouri River water levels continue to threaten residents in the area. Nearly 1,300 South Dakota National Guardsmen have been called to perform various flood response duties throughout the state in this historic flooding event.