The 65th Aggressor Squadron reactivated on June 9, 2022, with a directed mission to know, teach and replicate fifth-generation air adversaries at Nellis Air Force Base. In 2019, the then-Air Combat Command commander and Secretary of the Air Force approved the activation to improve training for fifth-generation fighter tactics development, advanced large force training and operational test support. The decision underwent compliance with the National Environmental and Policy Act and other regulatory and planning processes.