Isabelle, age ten, and Natalie, age six, daughters of Col. Mark Weatherington, 28th Bomb Wing commander, flip the switch to light the base Christmas tree during 28th BW Tree Lighting Ceremony in front of the Freedom Chapel on Ellsworth Air Force Base, S.D, Dec. 5, 2012. Airmen and their families from across the base gathered for the event that kicked off the holiday season. (U.S. Air Force photo by Airman 1st Class Kate Thornton-Maurer/Released)