Feb. 17, 2023 3rd Air Expeditionary Wing leads Agile Combat Employment Exercise in Guam, Northern Mariana Islands The 3rd Air Expeditionary Wing here at Joint Base Elmendorf-Richardson will lead an Agile Combat Employment, or ACE, exercise at Andersen Air Force Base, Guam, and part of the Northern Mariana Islands (NMI) March 1-8.