North Korea dramatically escalated tensions with America tonight by warning it had approved nuclear strike plans.
"The moment of explosion is approaching fast," the North Korean military said, warning that war could break out "today or tomorrow".
In response, President Obama ordered a ballistic missile defence system be moved to the nearest U.S. military base to the rogue state.
The U.S. defence system will move to Guam, the nearest American military base to North Korea, 2,000 miles south east of Pyongyang in the Pacific Ocean.
U.S. defence secretary, Chuck Hagel, said: “Some of the actions they have taken the last few weeks present a real and clear danger and threat to the interests of our allies starting with South Korea and Japan.
“Also there have been threats the North Koreans have leveled at our base in Guam and Hawaii.”