An armed helicopter carrying ammunition takes off to take part in a live-fire exercise off China's southeast coast, April 18, 2018. An air unit of the People's Liberation Army (PLA) ground force Wednesday held a live-fire exercise off China's southeast coast. The exercise, which involved the coordination of various types of armed helicopters, was an annual routine arrangement and tested the force's all-weather combat capability. (Xinhua/Li Shilong)