Troopers assigned to 4th Squadron, 2nd Cavalry Regiment and Dutch soldiers from the 42nd Battle Group test interoperability maintenance capabilities by hooking up a Leopard Recovery Tank to a Stryker during Allied Spirit I at Hohenfels Training Area located in Hohenfels, Germany, Jan. 19, 2015. The purpose of the exercise is to conduct multinational training as well as improving allied interoperability between U.S. and NATO forces.