A Croatian platoon leader yells commands to his troops as they take fire from simulated enemies in a situational training lane during Immediate Response 15 in Slunj, Croatia. Immediate Response 15 is a multinational, brigade-level, Command Post Exercise utilizing computer assisted simulations and field training exercises in Croatia and Slovenia.The exercises and simulations are built upon a decisive action based scenario and are designed to enhance regional stability, strengthen partner capacity and improve interoperability.