Chinese Navy soldiers aboard Zhoushan missile frigate convey messages via light signals to a Russian naval vessel on the Gulf of Aden, on Sept. 2, 2009. The Chinese missile frigate on the escort mission to fend off Somali pirates on the Gulf of Aden, encountered here with Russian Navy's Antisubmarine Warfare Ship "Admiral Tributs", which was escorting merchant vessels, at local time 2:15 p.m. on Wednesday and said hello to each other via light signals and flag signals.(Xinhua/Guo Gang)
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