Two F-35A Lightning IIs, assigned to the 4th Expeditionary Fighter Squadron, taxi to the runway June 6, 2019, at Al Dhafra Air Base, United Arab Emirates. Today is the 75th Anniversary of D-Day, when the U.S. established momentum in liberating western Europe by invading the beaches of Normandy. (U.S. Air Force photo by Staff Sgt. Chris Thornbury)