Soldiers take part in a drill in northwest China's Gansu Province, July 1, 2015. The People's Liberation Army (PLA) began a series of air-ground combat drills in Gansu on Wednesday. According to the PLA, seven live ammunition drills, dubbed "Gunpower 2015 Shandan" will be held in the Hexi Corridor, a green area between two large deserts, before middle September. (Xinhua/Li Yun)
