ISAF Senior Enlisted Leader (SEL), Command Sgt. Maj. Thomas Capel (right), and NATO Allied Joint Force Command Brunssum SEL, Chief Warrant Officer Dave Preeper, listen to a briefing given at the 2012 International Senior Enlisted Seminar (ISES), Sept. 6. Held at the George C. Marshall European Center for International Studies in Garmisch, Germany, ISES is the flagship professional development event for NATO, Partnership for Peace and key contact nation senior enlisted leaders, helping to prepare them for increasingly complex and challenging multinational environments, while continuing the development of a professional NCO Corps in NATO and partnered countries.