http://www.youtube.com/watch?v=o0cZI9rLSS4&feature=youtube_gdata
The US aircraft carrier George Washington has left Yokosuka US Navy port in Japan to join exercises with the South Korean naval force planned for next week. A US Navy press release said the exercise was planned before North Korea’s artillery attack on a South Korean island. South Korea’s troops are on high alert following the military skirmish that left at least four dead and has greatly heightened tensions on the peninsula. The joint exercise in the waters west of the Korean peninsula will start on Sunday and last for four days.