Staff Sgt. Patrick R. Kerber scans the skies over Alaska for aircraft approaching to refuel.
Staff Sgt. Patrick R. Kerber scans the skies over Alaska for aircraft approaching to refuel with his KC-135R Stratotanker during Exercise Northern Edge '99 on March 9, 1999. Kerber is attached to the 168th Air Refueling Squadron, Alaska Air National Guard.