Lt. Col. Eric Haagenson, Washington, D.C., Air National Guard pilot, makes final checks inside an F-16 Fighting Falcon during a simulated alert mission at the 113th Fighter Wing’s Aerospace Control Alert Detachment, Joint Base Andrews, Md., March 30, 2015. Haagenson and the 113th ANG work together to ensure flight readiness 24 hours a day, 7 days a week. (U.S. Air Force photo/Airman 1st Class Philip Bryant)