To define the elements of a combat support system to help achieve U.S. Air Force Aerospace Expeditionary Force goals, this report analyzes the current command and control (C2) architecture for combat support. Based on this analysis as well as interviews with Air Force personnel, lessons from the Air War Over Serbia, and doctrinal changes and evolving practices, the authors provide a series of structural concepts to improve execution of C2 and remedy identified shortfalls in the current system.