US and South Korea begin military drills - It will be interesting to see how North Korea will react - Nuclear threat or Not ?

(Reuters) - The U.S. and South Korean militaries kicked off large exercises on Sunday to underscore deterrence against North Korea after accusing the reclusive communist state of sinking a warship.

(www.telegraph.co.uk) - US and South Korea begin military drills in the face of nuclear threat from North Korea
The United States and South Korea began military drills off the Korean peninsula in defiance of threats from North Korea that it would respond with a "nuclear deterrent".

(voanews.com) - The United States and South Korea are to hold a series of joint military exercises in response to the late March sinking of a South Korean warship, blamed on North Korea. The first drill is to begin Sunday in the Sea of Japan. It is being called unprecedented in scope with 8,000 forces participating, 20 surface ships and submarines and about 200 fixed wing aircraft.

(news.yahoo.com) - ABOARD USS GEORGE WASHINGTON – A nuclear-powered U.S. supercarrier led an armada of warships in exercises off the Korean peninsula Sunday that North Korea has vowed to physically block and says could escalate into nuclear war. U.S. military officials said the maneuvers, conducted with South Korean ships and Japanese observers, were intended to send a strong signal to the North that aggression in the region will not be tolerated.