U.S. Air Force Airmen assigned to the 557th Expeditionary RED HORSE Squadron use a concrete vibrating tool at Al Udeid Air Base, Qatar, June 23, 2014. The tool used removes air bubbles from cement during the initial laying phases. (U.S. Air Force photo by Staff Sgt. Ciara Wymbs)
<br>Unit: 379th Air Expeditionary Wing
Staff Sgt. Ciara Wymbs
Taken on 23 June 2014
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