Chinese special troop soliders of the 15th convoy fleet participate in a night training on the Jinggangshan vessel in the Gulf of Aden, on Aug. 28, 2013. (Xinhua/Liang Shun)

Chinese special troop soliders of the 15th convoy fleet carry out safety checks before participating in a night training on the Jinggangshan vessel in the Gulf of Aden, on Aug. 28, 2013. (Xinhua/Liang Shun)

Chinese special troop soliders of the 15th convoy fleet participate in a night training on the Jinggangshan vessel in the Gulf of Aden, on Aug. 28, 2013. (Xinhua/Liang Shun)

A Chinese special troop solider of the 15th convoy fleet participates in a night training on the Jinggangshan vessel in the Gulf of Aden, on Aug. 28, 2013. (Xinhua/Liang Shun)

Chinese special troop soliders of the 15th convoy fleet participate in a night training on the Jinggangshan vessel in the Gulf of Aden, on Aug. 28, 2013. (Xinhua/Liang Shun)

Chinese special troop soliders of the 15th convoy fleet participate in a night training on the Jinggangshan vessel in the Gulf of Aden, on Aug. 28, 2013. (Xinhua/Liang Shun)