US Air Force F-35A Lightning II pilots from the 58th Fighter Squadron at Eglin AFB, Florida, form up off the wing of a KC-135 Stratotanker near the base in northwest Florida on 13 May 2013. The 33rd Fighter Wing at Eglin is the joint graduate flying and maintenance training wing that trains Air Force, Marine, Navy and international partner operators and maintainers on the F-35. The KC-135 crew is from the 336th Air Refueling Squadron, the Air Force Reserve Command unit at March ARB, California.