Families attending the annual Back to School Round Up event wait in line to receive free school supplies in the Pride Hangar on Ellsworth Air Force Base, S.D., Aug. 26, 2017. Airmen and families were given the opportunity to receive supplies such as backpacks, pencils and notebooks before the 2017-2018 school year began. (U.S. Air Force photo by Airman Nicolas Z. Erwin)