The 2005 Defense Base Closure and Realignment Commission (BRAC) report to the president directed the relocation of installation management functions from both the Air Force and Army to a new joint base unit, and established Joint Base Elmendorf-Richardson. The decision listed the Air Force as the supporting agency, implementing and providing the funding vehicle for support to the entire joint base.

Both installations used military, civilians and contractors to perform common installation-support functions and similar processes to accomplish those functions. The installations shared a common boundary and had an opportunity to consolidate, providing more consistent and effective support.
On July 30, 2010, the 673d Air Base Wing activated as the host wing, combining installation management functions of Elmendorf Air Force Base's 3rd Wing and U.S. Army Garrison Fort Richardson and consists of four groups that operate and maintain the joint base for air sovereignty, combat training, force staging and through output operations in support of worldwide contingencies. The installation hosts the headquarters for the United States Alaskan Command, 11th Air Force, U.S. Army Alaska, the 11th Airborne Division, and the Alaskan North American Aerospace Defense Command Region.
The 673 ABW comprises more than 5,500 joint military and civilian personnel, supporting America's Arctic Warriors and their families. The wing supports and enables three Air Force total-force wings, two Army brigades and 75 associate and tenant units.