Members of the 23rd Special Tactics Squadron listen to the instructions for their next challenge during a Monster Mash held at Hurlburt Field, Fla., June 28, 2013. A Monster Mash is a competition featuring a series of training challenges such as ruck marches, marksmanship and warrior knowledge. (U.S. Air Force photo by Capt. Belena S. Marquez/Released)
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HURLBURT FIELD, FL, US
This work, Preparing for competition [Image 1 of 8], by Capt. Belena Marquez, identified by DVIDS, is free of known copyright restrictions under U.S. copyright law.