Submarines conduct combat training

A submarine attached to the Chinese PLA Navy cleaves through waves during a recent round-the-clock multi-subject training exercise. (eng.chinamil.com.cn/Photo by Shi Jialong)

A submarine attached to the Chinese PLA Navy cleaves through waves during a recent round-the-clock multi-subject training exercise. (eng.chinamil.com.cn/Photo by Shi Jialong)

A submarine attached to the Chinese PLA Navy cleaves through waves during a recent round-the-clock multi-subject training exercise. (eng.chinamil.com.cn/Photo by Shi Jialong)