Members of the third Chinese peacekeeping police riot squad for mission in Liberia arrive at Yaoqiang International Airport in Jinan, capital of east China's Shandong Province, March 12, 2016. A total of 140 Chinese officers and soldiers, who made up the third Chinese peacekeeping police riot squad for mission in Liberia, have returned home after a one-year UN peacekeeping mission. [Xinhua]