A joint team of Air Force and Navy command and control units exercised advanced joint command and control during two air dominance events at Tyndall Air Force Base recently. Throughout the month of May, Tyndall hosted two simultaneous large force exercises preparing the Joint Force for operations in a highly contested environment—Checkered Flag 21-2, Air Combat Command’s largest air dominance exercise, and Combat Archer, the Air Force’s Weapon System Evaluation Program for air-to-air live-fire evaluations.