Bulgarian T-72 tanks participate in a combined arms

Bulgarian T-72 tanks participate in a combined arms live fire exercise at Novo Selo Training Area, Bulgaria, as part of exercise Saber Guardian 17 July 20, 2017.aber Guardian is a U.S. Army Europe-led, multinational exercise that spans across Bulgaria, Hungary and Romania with more than 25,000 service members 22 allied and partner nations. (U.S. Army photo by Spc. Jada Owens)