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North Korean leader Kim Jong Un has decided not to carry out a missile attack on Guam, according to North Korea's state-run media.

Pyongyang's threat of striking the U.S. island territory prompted a surge in tensions in the region last week, with President Donald Trump saying the U.S. military was "locked and loaded" if North Korea acted unwisely.

Trump also warned last week that any attack on the U.S. "will be met with fire and fury like the world has never seen.”

On "Fox & Friends" this morning, former campaign manager Corey Lewandowski credited Trump's tough rhetoric for causing North Korea to back down.

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"What we have seen from previous administrations for 30 years is trying to coddle North Korea, trying to work with them," Lewandowski said. "What this president said was, 'You don't want to mess with me.'"

He said that Trump and Defense Secretary James Mattis have made it clear that any attack would be treated as a "declaration of war."

"The president of the United States was very clear that if North Korea tries to do something against the United States, he will act swiftly, decisively, and it will be a complete annihilation," Lewandowski said. "And I don't think they're ready for that."

Watch more above.

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