British army soldiers, assigned to Bravo Company, 3rd Mercian, line up their Warrior Infantry Fighting Vehicles for a weapons calibration during Saber Junction 2012 at Grafenwoehr Training Area Oct. 15. The U.S. Army in Europe's exercise Saber Junction trains U.S. personnel and more than 1,800 multinational partners from 18 European nations, ensuring interoperability between forces and an agile, ready coalition force.