U.S. Air Force Gen. David L. Goldfein, United States Air Force vice chief of staff, administers the Oath of Enlistment to a group of men and women in the Air Force Delayed Entry Program April 9, 2016, at the Texas Motor Speedway, Fort Worth, Texas. The DEP is a program for recruits who have decided to enlist in the Air Force but have not been sent to basic training yet. (U.S. Air Force photo by Senior Airman Alexander Guerrero/Released)