The U.S. Air Force (USAF) must be able to generate and sustain airpower from dispersed and often partner-owned locations. This requirement underpins Agile Combat Employment (ACE), the concept for increasing survivability and operational flexibility by shifting operations away from centralized, vulnerable air bases to a network of smaller, distributed sites. Effective and affordable execution of ACE increasingly depends on the ability of the USAF to operate from partner airfields, placing a premium on interoperability ― the ability "to act together coherently, effectively and efficiently" to achieve tactical, operational, and strategic objectives. In fiscal year 2024, United States Air Forces in Europe?Air Forces Africa (USAFE-AFAFRICA) enlisted RAND Project AIR FORCE (PAF) to identify key obstacles to greater interoperability in manpower-intensive and equipment-heavy functions such as aircraft maintenance and base operating support (BOS). PAF developed a framework to assess partner capabilities, identify gaps between those capabilities and USAFE‘s needs, and develop courses of action (COAs) to close those gaps. The research uncovered USAFE-wide challenges that transcended individual functions ― concerns about communication, coordination, and planning.