Habitat for Humanity
Staff Sgt. Eric Leyva, 460th Space Communication Squadron communication project manager, left, and Senior Airman Daniel McElhattan, 460th Space Communication Squadron client systems technician, prepare to lift part of the roofing structure at the Habitat for Humanity build Jan. 10, 2014, in Aurora, Colo. HFH is an international non-profit organization that has built or repaired more than 800,000 houses and serves more than 4 million people worldwide. (U.S. Air Force photo by Senior Airman Marcy Copeland/Released)