Soldiers take part in the opening ceremony of ASEAN Defense Ministers' Meeting-Plus Military Medicine-Humanitarian Assistance and Disaster Relief Joint Exercise (AM-HEx 2016) in Chonburi, Thailand on Sept. 5, 2016. Troops from 18 countries -- 10 ASEAN member states and its eight dialogue partners on Monday began a joint exercise on humanitarian assistance and disaster relief here in Thailand. (Xinhua/Li Mangmang)