Refuelers keep mission soaring
Airman 1st Class Justin Simpson, a crew chief with the 379th Expeditionary Aircraft Maintenance Squadron at an air base in Southwest Asia, talks with the pilot of a KC-135 Stratotanker via headset during the preflight check before a refueling mission. Airman Simpson serves as the "eyes on the ground" for the pilots, letting them know if everything is operating properly as they go through the checklist. (U.S. Air Force photo/Staff Sgt. Joshua Garcia)