Sailors assigned to a destroyer flotilla of the navy under the PLA Southern Theater Command firmly respond to the emergent situation in the anti-submarine training on November 11 during a real combat training exercise in the South China Sea, which involves more than 10 subjects, including anti-submarine training based on destroyer-aircraft coordination, operational training on visit, board, search and seizure (VBSS), anti-terrorism and anti-piracy training, etc. (eng.chinamil.com.cn/Photo by Xu Guang and Chen Yubin)