People's Liberation army soldiers participate in the opening ceremony of joint exercise code-named "Peace Mission 2014" involving member states of the Shanghai Cooperation Organization (SCO) in Zhurihe, north China's Inner Mongolia Autonomous Region, Aug. 24, 2014. The 18th Shanghai Cooperation Organization (SCO) Summit is scheduled for June 9 to 10 in Qingdao, a coastal city in east China's Shandong Province. (Xinhua/Zhang Ling)