Airman Joshua Shepherd, 4th Logistics Readiness Squadron Travel Management Office receiving technician, places duct tape to mark the balance point on a piece of equipment during Exercise Thunderdome 17-02, July 20, 2017, at Seymour Johnson Air Force Base, North Carolina. Exercises such as this are performed to ensure mission readiness. (U.S. Air Force photo by Senior Airman Ashley Maldonado)