Eight military bands from different countries perform at the opening ceremony of a military band festival of the Shanghai Cooperation Organization (SCO) at a square of the Juyongguan Pass of the Great Wall in Beijing, capital of China, April 24, 2018. 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. Since China took over the rotating presidency of the SCO last June, more than 160 activities including a series of important institutional meetings and multilateral events have been held so far. (Xinhua/Ju Zhenhua)