U.S. Army Lt. Col. Michael Ripley, right, the commander of the 173rd Airborne Brigade Combat Team, briefs Slovenian President Borut Pahor and Slovenian Chief of Defense Dobran Bozic during Immediate Response 2014 in Postojna, Slovenia, Aug. 27, 2014. Immediate Response is a U.S. Army Europe-led combined joint tactical field training exercise designed to build interoperability between NATO, Croatia and its regional partner nations.