The biggest challenge to Air Force readiness is the tension between sustaining legacy systems and investing in future capabilities under constrained budgets, Gen. Kenneth Wilsbach told lawmakers.

Air Force officials have disclosed few details about the Raider, which is expected to be stealthy and capable of penetrating advanced enemy air defenses.

The Air Force plans to acquire interoperable robotic wingmen that it can “mix and match” with a variety of manned aircraft.