This is part of the CSIS series U.S. Military Forces in FY 2021. The Air Force continues the development and procurement of next-generation aircraft to meet the demands of great power conflict. Fielding of new aircraft has been enough to arrest the increase in fleet age. However, the Air Force is not buying enough new aircraft to sustain its force structure, so it seeks to retire older aircraft.
Photo: Air Force Senior Airman Duncan C. Bevan