U.S. Army 173rd Airborne Brigade Soldier helps provide radio communications for a Slovenian partner 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.