Dutch soldiers take cover and observe the environment during exercise Allied Spirit I the U.S. Army’s Joint Multinational Readiness Center in Hohenfels, Germany, Jan. 20, 2015. Exercise Allied Spirit includes more than 2,000 participants from Canada, Hungary, Netherlands, U.K. and the U.S. Allied Spirit is exercising tactical interoperability and testing secure communications among alliance members. (U.S. Army photo by Visual Information Specialist Gertrud Zach/released)