U.S. Army Brig. Gen. Giselle Wilz, NATO Headquarters Sarajevo commander, Ambassador Mark Ferguson, British Ambassador to Bosnia and Herzegovina, Slovak Ambassador Jan Pšenica, and Bosnia and Herzegovina Brig. Gen. Velibor Purković speak to students at a local university during a defense reform conference June 11, 2015 in Bijeljina, Bosnia and Herzegovina. (U.S. Air Force photo by Master Sgt. JT May III/released)