Major Ivan Stipić from the Croatian Armed Forces and a co-Exercise Control Officer in Charge (OIC) for Immediate Response 15 works at his computer station while at the Slunj, Croatia training area. 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.