A U.S. Soldier performs burpees, a leg and chest exercise, during the National Guard 5-kilometer race and Minuteman Challenge at Bagram Airfield in Parwan province, Afghanistan, Dec. 14, 2013. The race and challenge concluded a three-day National Guard 377th birthday celebration hosted by the 437th Military Police Battalion and National Guard Affairs - Afghanistan.
SGT Quentin Johnson
Taken on 14 December 2013
<a rel="nofollow" class="external free" href="http://www.defenseimagery.mil/imageRetrieve.action?guid=0febdbb5648353ac8b373b0a0b76f00e1aad9732&amp;t=2">http://www.defenseimagery.mil/imageRetrieve.action?guid=0febdbb5648353ac8b373b0a0b76f00e1aad9732&amp;t=2</a>