Which of the following is NOT an ACE enabler?

• A. Mission Ready Airman (MRA)
• B. Mission command
• C. Tailorable force package
• D. Joint all-domain operations

Answer: (D)

ACE enablers are the elements that make Agile Combat Employment workable, keeping air power ready, flexible, and self-sufficient in dispersed, contested environments. A Mission Ready Airman ensures personnel are trained, equipped, and ready for rapid tasking, so aircrews can surge when needed. Mission command provides clear intent and delegated authority, enabling dispersed units to make quick, autonomous decisions rather than waiting for central direction. A tailorable force package creates the flexibility to assemble and adjust teams and assets to fit each mission, reducing friction and improving adaptability in dynamic situations.

Joint all-domain operations, while a vital overarching approach to synchronized action across air, land, sea, space, and cyber, isn’t an ACE enabler. It’s a broader, joint construct that spans services and level of operation, rather than a specific Air Force capability or practice that directly enables ACE at the unit level. That makes it not fit as an ACE enabler.