U.S. Air Force Col. Jennifer Kilborn, Air Combat Command civil engineering chief, speaks during the ACC Installations and Mission Support Directorate’s inactivation ceremony at Langley Air Force Base, Va., June 16, 2015. While active, the ACC Installations and Mission Support Directorate led the joint base transition for Joint Base Langley-Eustis and invested $85 million in energy and water conservation projects, which now save more than $14 million annually. (U.S. Air Force photo by Airman 1st Class Devin S. Michaels/Released)