Naval vessels take part in a joint naval exercise on the sea off Qingdao, east China's Shandong Province, on April 26, 2019. China conducted a joint naval exercise with Southeast Asian countries in Qingdao, with focus on jointly handling maritime emergency rescues. (Photo: China News Service/Li Chun)
A helicopter takes off from a Chinese naval vessel during a joint naval exercise on the sea off Qingdao, east China's Shandong Province, April 26, 2019. China conducted a joint naval exercise with Southeast Asian countries in Qingdao, with focus on jointly handling maritime emergency rescues. (Photo: China News Service/Li Chun)
Chinese officers participate in a joint naval exercise on the sea off Qingdao, east China's Shandong Province, on April 26, 2019. China conducted a joint naval exercise with Southeast Asian countries in Qingdao, with focus on jointly handling maritime emergency rescues. (Photo: China News Service/Li Chun)
A Thailand naval vessel participates in a joint naval exercise on the sea off Qingdao, east China's Shandong Province, April 26, 2019. China conducted a joint naval exercise with Southeast Asian countries in Qingdao, with focus on jointly handling maritime emergency rescues. (Photo: China News Service/Li Chun)
A helicopter takes off from a Chinese naval vessel during a joint naval exercise on the sea off Qingdao, east China's Shandong Province, on April 26, 2019. China conducted a joint naval exercise with Southeast Asian countries in Qingdao, with focus on jointly handling maritime emergency rescues. (Photo: China News Service/Li Chun)
A Vietnam naval vessel participates in a joint naval exercise on the sea off Qingdao, east China's Shandong Province, April 26, 2019. China conducted a joint naval exercise with Southeast Asian countries in Qingdao, with focus on jointly handling maritime emergency rescues. (Photo: China News Service/Li Chun)
Foreign naval vessels participate in a joint naval exercise on the sea off Qingdao, east China's Shandong Province, April 26, 2019. China conducted a joint naval exercise with Southeast Asian countries in Qingdao, with focus on jointly handling maritime emergency rescues. (Photo: China News Service/Li Chun)