A U.S. soldier briefs Polish soldiers during the Strong Europe Tank Challenge at the Grafenwoehr Training Area in Grafenwoehr, Germany, May 10, 2016. U.S. Army Europe and the German Bundeswehr co-hosted the four-day competition, which was designed to foster military partnership while promoting NATO interoperability. Seven platoons from six NATO nations competed in the event, the first multinational tank challenge at Grafenwoehr in 25 years. Army photo by Pfc. Emily Houdershieldt