A submarine attached to a naval submarine flotilla under the PLA Northern Theater Command sails smoothly across the sea in a recent real-combat training exercise. (eng.chinamil.com.cn/Photo by Wu Haodong)
A submarine attached to a naval submarine flotilla under the PLA Northern Theater Command sails smoothly across the sea in a recent real-combat training exercise. (eng.chinamil.com.cn/Photo by Wu Haodong)