This Air Force Doctrine Document (AFDD) establishes doctrinal guidance for combat support to air and space forces across the full range of military operations. "Combat Support" is the keystone document addressing the full spectrum of agile combat support functions that operate in peace and in war. It stresses the need for tailored combat support packages with the Airmen, facilities, equipment, and supplies required for supporting Air Force forces. Air and space forces respond to global taskings within hours. The support for these forces must be equally responsive. This is the challenging job of combat support, the foundation of air and space power. Air and space expeditionary task forces employment capabilities demand rapid positioning of force packages to achieve combat, peacekeeping, counterdrug, and nation building effects. Air Force agile combat support capabilities are provided by people and organizations responsible for planning, programming, and sustaining the forces; determining who and what are deployed; as well as how they arrive and return home safely. Agile combat support is an Air Force distinctive capability that touches every functional area and is key to meeting the US Air Force's mission to organize, train, equip, and employ air and space power. The dedicated support of our people makes agile combat support a reality. The goal of agile combat support is to provide the most capable air and space forces to combatant commanders.