Master Sgt. Curtis Stark, 7th Expeditionary Airborne Command and Control Squadron superintendent, holds one of his hats inside the Wing Operations Center at at Al Udeid Air Base, Qatar Nov. 15. Stark uses hats like the one pictured here to keep track of his many deployments. He has deployed 17 times in support of contingency operations and has accumulated more than 4,000 combat flying hours. After nearly 30 years of service he plans to retire from the Air Force in March 2016. (U.S. Air Force photo by Tech. Sgt. James Hodgman/Released)
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