Chinese navy warships conduct air defense exercise in Gulf of Aden (3/4)

Chinese navy's Changbaishan Warship and Yuncheng warship conduct the air defense exercise in the Gulf of Aden and the waters off Somalia on Oct 17, 2014. The two warships are part of the 18th batch of convoy fleet sent by the Chinese People's Liberation Army(PLA) Navy for escort missions in the Gulf of Aden. (Photo: www.news.cn)