A Leopard 2 A4 tank from the 1st Tank Battalion, 10th Armoured Calvary Brigade (Polish), pushes to a staging point at the Joint Multinational Readiness Center, Hohenfels Training Area, Germany, Jan. 29. The tank battalion is part of Allied Spirit 22, an exercise that comprises over 5000 Soldiers from 15 nations and is designed to enable integration of the U.S. military and its allies in a competitive combat training environment.