Cpt. Bill Whelan, commander of Alpha Company 1st Battalion, 8th Infantry Regiment, 3rd Armored Brigade Combat Team, 4th Infantry Division, speaks to reporters after live fire training conducted by the Bulgarian 61st Mechanized Brigade during exercise Saber Guardian 17, in Koren, Bulgaria, July 15, 2017. Saber Guardian is a U.S. Army Europe-led, multinational exercise that spans across Bulgaria, Hungary and Romania with more than 25,000 service members from 22 allied and partner nations. (U.S. Army photo by Spc. Michael Germundson)