Slovakian army 2nd Lt. Jana Beresikova and Staff Sgt. Pavol Horny set parameters on a single channel radio at Kozara Barracks in Banja Luka, Bosnia and Herzegovina, Sept. 14, 2009, during Combined Endeavor 2009. Combined Endeavor is a U.S. European Command-sponsored communications and information systems interoperability exercise between NATO and Partnership for Peace nations. (DoD photo by Tech. Sgt. William Greer, U.S. Air Force/Released)
