Rear Adm. Du Xiping (front right), deputy commander of China's Beihai Fleet, shakes hands with Capt. 1st Rank Sergei Yuriyevich Zhuga of Russia's Pacific Fleet during a welcome ceremony at a naval base in Qingdao, in east China's Shandong Province, on Saturday, April 21, 2012. Joint Chinese-Russian maritime drills are scheduled from April 22 to 27 on the Yellow Sea, Xinhua News Agency said. (AP Photo/Xinhua, Zha Chunming)

Photo by: Zha Chunming

Rear Adm. Du Xiping (front right), deputy commander of China's Beihai Fleet, shakes hands with Capt. 1st Rank Sergei Yuriyevich Zhuga of Russia's Pacific Fleet during a welcome ceremony at a naval base in Qingdao, in east China's Shandong Province, on Saturday, April 21, 2012. Joint Chinese-Russian maritime drills are scheduled from April 22 to 27 on the Yellow Sea, Xinhua News Agency said. (AP Photo/Xinhua, Zha Chunming)