Keywords: 130413-A-KG432-490 (8655409288).jpg Participants compete in the inaugural Grafenwoehr Rugged Terrain Obstacle Run in Grafenwoehr Germany April 13 2013 More than 670 competitors participated in the 13-kilometer 13-obstacle race which centered around the Grafenwoehr Training Area's Rugged Terrain Trail a training resource designed to test the ability of small units to operate in a physically demanding environment DoD photo by Staff Sgt Pablo N Piedra U S Army/Released https //www flickr com/photos/39955793 N07/8655409288/ 130413-A-KG432-490 2013-04-13 09 50 https //www flickr com/people/39955793 N07 U S Department of Defense Current Photos PD-USGov U S Department of Defense Current Photos https //flickr com/photos/39955793 N07/8655409288 2016-09-03 08 54 05 United States Government Work Fun Joint Multinational Training Command Recreation Soldiers Welfare Dashes Grafenwöhr Training Area United States Army Warriors |