U.S. aircraft carrier heads for Korean waters

Don't worry Obama Says this is just an exercise, we can not be threatening in any way here.
Sit and do nothing, seems to be the policy.

(Reuters) - A U.S. aircraft carrier group set off for Korean waters on Wednesday, a day after North Korea rained artillery shells on a South Korean island, in a move likely to enrage Pyongyang and unsettle its ally, China.

South Korea said the bodies of two civilians were found on
the island after Tuesday's attack, which is likely to stir up
more resentment in the country against its prickly neighbor.

The nuclear-powered USS George Washington, which carries 75 warplanes and has a crew of over 6,000, left a naval base south of Tokyo and would join exercises with South Korea from Sunday to the following Wednesday, U.S. officials in Seoul said.

"This exercise is defensive in nature," U.S. Forces Korea said in a statement. "While planned well before yesterday's unprovoked artillery attack, it demonstrates the strength of the ROK (South Korea)-U.S. alliance and our commitment to regional stability through deterrence."