A U.S. Soldier of Regimental Engineer Squadron, 2nd Cavalry Regiment in a Stryker armored vehicle collects a soil sample while conducting chemical, biological, radiological, and nuclear operations during exercise Saber Junction 15 at the U.S. Army’s Joint Multinational Readiness Center in Hohenfels, Germany, April 25, 2015. Saber Junction 15 prepares NATO and partner nation forces for offensive, defensive, and stability operations and promotes interoperability among participants. Saber Junction 15 has more than 4,700 participants from 17 countries, to include: Albania, Armenia, Belgium, Bosnia, Bulgaria, Great Britain, Hungary, Latvia, Lithuania, Luxembourg, Macedonia, Moldova, Poland, Romania, Sweden, Turkey, and the U.S. (U.S. Army photo by Spc. Tyler Kingsbury/Released)