Chinese navy servicemen stand at the ready next to a large armament, onboard the Chinese missile frigate Yuncheng (571) in Hong Kong on April 30, 2012. A missile destroyer and a missile frigate is making a port call in Hong Kong to commemorate the 15th anniversary of Hong Kong's handover from the Britain to China. AFP PHOTO / AARON TAM (Photo credit should read aaron tam/AFP/GettyImages)