Staff Sgt. Solomon Walker, a flight engineer assigned to the 757th Airlift Squadron, prepares a C-130H Hercules aircraft for takeoff on Jan. 29, 2021, from the U.S. Army Yuma Proving Grounds, Arizona, to conduct joint airborne/air transportability training during Operation Arizona Sunrise. Under a distributed operations concept, five C-130s and more than 100 Reserve Citizen Airmen assigned to the 910th Airlift Wing traveled to Southern Arizona, Jan. 24–30, 2021, for the 757th AS’s annual flyaway. (U.S. Air Force photo/Staff Sgt. Juliet Louden)