By Daily Mail Reporter PUBLISHED: 03:05 EST, 1 April 2013 | UPDATED: 19:50 EST, 1 April 2013 South Korea will strike back quickly if the North stages any attack on its territory, the new president in Seoul warned on Monday, as tensions ratcheted higher on the Korean peninsula amid shrill rhetoric from Pyongyang and the U.S. deployment of radar-evading fighter planes. North Korea says the region is on the brink of a nuclear war in the wake of United Nations sanctions imposed for its February nuclear test and a series of joint U.S. and South Korean military drills that have included a rare U.S. show of aerial power.
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North Korea said that nuclear weapons are 'treasure' and 'the nation's life'
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Has claimed region is on the brink of nuclear war in wake of UN sanctions
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The US urges the rogue state to restrain itself from threatening the South
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Stealth jets joined the annual joint defence drills between US and the South
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The rogue state said it was entering a 'state of war' with South Korea
The South has changed its rules of engagement to allow local units to respond immediately to attacks, rather than waiting for permission from @placeholder