Six-Pack in the Sky Air Force B-1B Lancers, F-15E Strike Eagles and F-35A Lightning IIs fly in a formation during Astral Knight over the North Sea, June 8, 2026. The exercise focuses on the tactical execution of integrated air and missile defense. SHARE: Download: Full Size (1.06 MB) Tags: exercises, air force, training, astral knight, astral knight 26 Credit: Air Force Staff Sgt. Nash Truitt VIRIN: 260608-F-BN500-9002.JPG Photo Gallery