President Donald Trump said North Korea has made "fools of U.S. negotiators" over the last two decades as his predecessors have failed to reign in the nation's nuclear ambitions. Trump on North Korea: 'Only one thing will work'

President Donald Trump on Saturday lamented decades of "failed" foreign policy with North Korea, saying "only one thing" will work.

"Presidents and their administrations have been talking to North Korea for 25 years, agreements made and massive amounts of money paid ... hasn't worked, agreements violated before the ink was dry, makings fools of U.S. negotiators. Sorry, but only one thing will work!," Trump wrote on Twitter.


The president has continued to ratchet up tensions with Pyongyang in a series of recent cryptic statements.

The president told reporters at a White House event featuring military leaders earlier this week they were experiencing the "calm before the storm." Neither Trump nor his spokespeople elaborated on what that meant.

The president publicly denounced Secretary of State Rex Tillerson after America's top diplomat told reporters that U.S. and North Korean officials had direct communications with each other.

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Trump's rhetoric comes as North Korean leader Kim Jong Un continues to test the regime's missile and nuclear capabilities.

North Korean officials have accused Trump of declaring war, a claim the White House has rejected.