U.S. Marines prepare to launch an F-35B Lightning II aircraft, assigned to the Marine Medium Tiltrotor Squadron 164 (Reinforced), 15th Marine Expeditionary Unit, by conducting a foreign object debris clearance walk at Al Udeid Air Base, Qatar, March 3, 2021. The F-35B Lightning II is the U.S. Marine Corps variant of the 5th generation fighter. The F-35B Lightning II participated in the Air Forces Central Agile Combat Employment capstone event. The capstone event enhanced theater ACE competencies, validating operational capabilities and command and control while simultaneously strengthening joint and regional partnerships. (U.S. Air National Guard photo by Tech. Sgt. Brigette Waltermire)