A Chinese naval soldier watches the sails of merchant vessels in "Zhoushan" missile frigate in the waters of the Gulf of Aden, Nov. 6, 2009. The third Chinese fleet for an escort mission against pirates escorted 25 merchant vessels on the Gulf of Aden Friday, finished the Chinese Navy's 131st scort mission.

　　A Chinese naval radar soldier watches the sails of merchant vessels in "Zhoushan" missile frigate in the waters of the Gulf of Aden, Nov. 6, 2009.

　　A merchant vessels sail in the waters of the Gulf of Aden escorted by the Chinese escort flotilla, Nov. 6, 2009.

　　Two merchant vessels sail in the waters of the Gulf of Aden escorted by the Chinese escort flotilla, Nov. 6, 2009. 

　　Chinese "Qiandaohu" supply ship (front) escorts merchant vessels in the waters of the Gulf of Aden, Nov. 6, 2009. The third Chinese fleet for an escort mission against pirates escorted 25 merchant vessels on the Gulf of Aden Friday, finished the Chinese Navy's 131st scort mission.