NKorea says it will strengthen nuclear defence
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North Korea says it will strengthen its nuclear deterrent in response to American military threats - and is prepared for both dialogue and war with Washington.
The comment comes a day after the launch of an annual US and South Korean military exercise that Pyongyang claims is a rehearsal for invasion.
Pyongyang says it has ordered its military onto full alert and announced its readiness to "blow up" South Korean facilities.
The US and South Korea say the annual Key Resolve/Foal Eagle exercise, which involves 18,000 American and 20 ,000 South Korean troops, is defensive.
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![Two missiles take off during a firing drill at an undisclosed location in North Korea. [AFP] Two missiles take off during a firing drill at an undisclosed location in North Korea. [AFP]](http://www.abc.net.au/reslib/200905/r377055_1754023.jpg)










