Minesweeping blast shell is detonated during a demining drill along the China-Vietnam border on Zheyin Mountain in Masupo County, southwest China's Yunnan Province, Nov. 2, 2015. The People's Liberation Army (PLA) began preparatory work in early August for a demining mission, which will be carried out along the southwestern border areas in Yunnan Province and Guangxi Zhuang Autonomous Region. The operation will finish by the end of 2017. (Photo: Xinhua/Yang Zongyou)
