Building runways
Staff Sgt. Channing Henry, 31st Expeditionary Rapid Engineer Deployable Heavy Operation Repair Squadron Engineer pavement and equipment journeyman, operates an asphalt paver on a test strip at Nigerien Air Base 201, Niger, Oct. 19, 2018. Airmen evaluate the equipment and materials several times before laying down the actual runway. (U.S. Air Force photo by Tech. Sgt. Rachelle Coleman)