A Serbian soldier of 1st Company, 31st Infantry Battalion, 3rd Infantry Brigade, looks outside the window of a CH-47 Chinook helicopter with U.S. Soldiers of Alpha Company, 4th Battalion, 3rd Aviation Regiment, 3rd Combat Aviation Brigade, 3rd Infantry Division, while conduction infiltration operations during exercise Combined Resolve IV at the U.S. Army’s Joint Multinational Readiness Center in Hohenfels, Germany, May 21, 2015. Combined Resolve IV is an Army Europe-directed exercise training a multinational brigade and enhancing interoperability with allies and partner nations. Combined Resolve trains on unified land operations against a complex threat while improving the combat readiness of all participants. The Combined Resolve series of exercises incorporates the U.S. Army’s Regionally Aligned Force with the European Activity Set to train with European allies and partners. The 7th Army JMTC is the only training command outside the continental United States, providing realistic and relevant training to U.S. Army, Joint Service, NATO, allied and multinational units, and is a regular venue for some of the largest training exercises for U.S. and European forces. (U.S. Army photo by Spc. Justin De Hoyos/Released)