Chinese President Hu Jintao (L) waves to naval vessels which are being reviewed while aboard the destroyer Shijiazhuang in waters off Qingdao, east China's Shandong Province, April 23, 2009. A parade displayed 25 naval vessels and 31 aircrafts of the PLA Navy, including two nuclear submarines, as part of a celebration to mark the 60th anniversary of the founding of the PLA Navy. [Xinhua]

    Two of the Chinese navy's nuclear-powered submarines of Long March 6 and Long March 3, and two conventional submarines lead the Chinese fleet during a sea parade to mark the navy's 60th anniversary, April 23, 2009. [Agencies]

    Military helicopters fly over a Chinese navy ship during a fleet parade in the sea off Qingdao, east China's Shandong Province, April 23, 2009. President Hu Jintao, aboard the Chinese Navy destroyer Shijiazhuang, reviewed warships and aircraft Thursday afternoon off the coast of Qingdao to mark the 60th anniversary of the founding of the Chinese People's Liberation Army (PLA) Navy. [Xinhua]

    Military photographers take pictures during a fleet parade in the waters off Qingdao, east China's Shandong Province, April 23, 2009. [Xinhua]

    Chinese navy ships participate in a fleet parade in the waters off Qingdao, east China's Shandong Province, April 23, 2009. [Xinhua]