5/29/2012 U.S. Army, Bosnian-Herzegovinian, and Croatian land forces conduct deliberate attack training during Immediate Response 2012 being held in Slunj, Croatia. Here, soldiers are fitted with DISE, a system designed to indicate a hit with a laser fitted to a weapon. Response is a multinational tactical field exercise that involves more than 700 personnel from the U.S. Army Europe's 2nd Cavalry Regiment and Croatian land forces, with elements from Albania, Bosnia and Herzegovina, Montenegro, and Slovenia. Macedonia and Serbia have brought observers.