Service members march in international event
U.S. Army Capt. David Esra and 2nd Lt. Christopher Bulger, members of the 361st Civil Affairs Brigade ruck team run to catch up to their formation during the International Four Days Marches Nijmegen in Nijmegen, Netherlands, July 15, 2014. Each day there was a time limit given to the marching participants in which they had to complete a certain amount of miles to continue throughout the week. (U.S. Air Force photo by Senior Airman Gustavo Castillo/Released)

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Photo by: Senior Airman Gustavo CastilloReleased  |  VIRIN: 140715-F-VI983-153.JPG