Visitors look at a Leopard tank in a camouflage cover made in Germany at the 25th edition of the International Defense Industry Expo (MSPO) in Kielce, Poland, on Sept. 8, 2017. The 25th edition of the International Defense Industry Expo (MSPO), one of the largest military event in Europe, ended up here on Friday. (Xinhua/Jaap Arriens)
