N. Korea threatens to attack US, S. Korea warships.

[Dantheman62]

SEOUL, South Korea – North Korea threatened military action Wednesday against U.S. and South Korean warships plying the waters near the Koreas' disputed maritime border, raising the specter of a naval clash just days after the regime's underground nuclear test.

Pyongyang, reacting angrily to Seoul's decision to join an international program to intercept ships suspected of aiding nuclear proliferation, called the move tantamount to a declaration of war.

"Now that the South Korean puppets were so ridiculous as to join in the said racket and dare declare a war against compatriots," North Korea is "compelled to take a decisive measure," the Committee for the Peaceful Reunification of Korea said in a statement carried by state media.

Seoul's decision comes at a time when "the state of military confrontation is growing acute and there is constant danger of military conflict," the statement warned.

South Korea's military said Wednesday it was prepared to "respond sternly" to any North Korean provocation.

North Korea's latest belligerence comes as the U.N. Security Council debates how to punish the regime for testing a nuclear bomb Monday in what President Barack Obama called a "blatant violation" of international law.

Ambassadors from the five permanent veto-wielding council members — the United States, Russia, China, Britain and France — as well as Japan and South Korea were working out the details of a new resolution.

The success of any new sanctions would depend on how aggressively China, one of North Korea's only allies, implements them.

"It's not going too far to say that China holds the keys on sanctions," said Kim Sung-han, an international relations professor at Seoul's Korea University.

South Korea, divided from the North by a heavily fortified border, had responded to the nuclear test by joining the Proliferation Security Initiative, a U.S.-led network of nations seeking to stop ships from transporting the materials used in nuclear bombs.

Seoul previously resisted joining the PSI in favor of seeking reconciliation with Pyongyang, but pushed those efforts aside Monday after the nuclear test in the northeast.

North Korea warned Wednesday that any attempt to stop, board or inspect its ships would constitute a "grave violation."

The regime also said it could no longer promise the safety of U.S. and South Korean warships and civilian vessels in the waters near the Korea's western maritime border.

"They should bear in mind that the (North) has tremendous military muscle and its own method of strike able to conquer any targets in its vicinity at one stroke or hit the U.S. on the raw, if necessary," it said.

http://news.yahoo.com/s/ap/20090527/...koreas_nuclear