America and North Korea are again trading blows after the sinking of a South Korean warship earlier this year.
Secretary of State Hillary Clinton called the rogue state 'isolated and belligerent.' North Korea responded with another threat against the U-S.
North Korea is threatening a 'physical response' if America joins South Korea in joint military drills this weekend.
Leaders in the North say the maneuvers have brought the region to 'the brink of explosion.
But Secretary of State Hillary Clinton says the communist country must be punished with new sanctions for its 'dangerous' behavior.
“The belligerence, the provocation, the sinking of the South Korean ship,” said Clinton.
North Korea denies it had anything to do with sinking this South Korean warship in March, killing 46 sailors.
Clinton was speaking at a regional security conference in Vietnam - when she pressed Asian partners.
She said they must help convince 'isolated' North Korea to change its attitude and return to nuclear talks.
“We of course would welcome the day when there was peace on the peninsula and when the leaders of North Korea were less concerned about making threats and more concerned about making opportunities,” said Clinton.
The Secretary of State said America is open to talks with North Korea but added it is 'unlikely' to happen anytime soon.