President Donald Trump threatened North Korea "with fire and fury like the world has never seen" on Tuesday after suggestions the communist country has mastered one of the final hurdles to being able to strike the United States with a nuclear missile.
North Korea said it was examining its operational plans for attacking Guam — a U.S. territory about 2,100 miles away — in order to contain U.S. military activity there. The North Korean army said in a statement distributed Wednesday by the state-run news agency that it is studying a plan to create an "enveloping fire" in areas around Guam with medium- to long-range ballistic missiles. Guam is home to Andersen Air Force Base.
The competing threats escalated tensions between the foes even further. Although it wasn't clear if Trump and the Koreans were responding directly to each other, the heightened rhetoric added to the potential for a miscalculation that might bring the nuclear-armed nations into conflict.
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Trump's stern words to the camera at his golf course in Bedminster, New Jersey, came hours after reports indicating North Korea can now wed nuclear warheads with its missiles, including those that may be able to hit the American mainland. The isolated and impoverished dictatorship has strived for decades to have the ability to strike the U.S. and its Asian allies, and the pace of its breakthroughs is already having far-reaching consequences for stability in the Pacific and beyond.
The nuclear advances were detailed in an official Japanese assessment and a Washington Post story that cited U.S. intelligence officials and a confidential Defense Intelligence Agency report. The story was confirmed in part by NBC News, whose source, a U.S. official, cautioned that North Korea must still establish it can deliver a weapon that is accurate and can survive re-entry.
The U.S. now puts the North Korean arsenal at up to 60 nuclear weapons, more than double most assessments by independent experts, according to the Post's reporting.
"North Korea had best not make any more threats to the United States," said a stern-looking Trump, seated with his arms crossed and with his wife beside him. "They will be met with fire and fury like the world has never seen."
"He has been very threatening beyond a normal state. And as I said they will be met with fire, fury and frankly power the likes of which this world has never seen before."
The remarks appeared scripted, with Trump glancing at a paper in front of him. They evoked President Harry Truman's announcement of the U.S. atomic bomb dropped on Hiroshima, Japan, in 1945, in which he warned of "a rain of ruin from the air, the like of which has never been seen on this earth."
But it wasn't clear what Trump, who is prone to hyperbole and bombast in far less grave situations, meant by the threat. White House officials did not elaborate.
The Trump administration considers North Korea to be America's greatest national security threat and tensions have steadily escalated this year.
Pyongyang responded angrily to the U.N. Security Council's adoption this weekend of new, tougher sanctions spearheaded by Washington . The sanctions followed groundbreaking long-range missile tests last month that showed the North could potentially reach the continental United States with its missiles. The newly revealed U.S. intelligence assessment indicates those missiles can carry nuclear warheads.
Denouncing the U.N. sanctions through state media, the North warned: "We will make the U.S. pay by a thousand-fold for all the heinous crimes it commits against the state and people of this country."
Governor Eddie Baza Calvo said Wednesday there is no threat to Guam or to the Mariana Islands to the north. He adds that he will continue discussions with Joint Region Marianas Commander Rear Admiral Shoshana Chatfield to discuss military and first-responder readiness, to ensure that Guam is "prepared for any eventuality."
For North Korea, having a nuclear-tipped missile that could strike America would be the ultimate guarantee against invasion by its superpower adversary.
It is an ambition decades in the making. North Korea began producing fissile material for bombs in the early 1990s and conducted its first nuclear test explosion in 2006. Four subsequent nuclear tests, the latest a year ago, have accelerated progress on miniaturizing a device — something North Korea already claimed it could do. Over that span, multiple U.S. presidents have tried and failed to coax or pressure Pyongyang into abandoning its nuclear ambitions.
The secrecy of the North's nuclear program and the underground nature of its test explosions make it very difficult to properly assess its claims. But the new assessments from Japan and the U.S. suggest that doubts over the North's abilities are receding.
In an annual report, Japan's Defense Ministry on Tuesday concluded that "it is possible that North Korea has achieved the miniaturization of nuclear weapons and has developed nuclear warheads." Japan, a key U.S. ally, is a potential, front-line target of North Korean aggression.
The Post story, citing unnamed U.S. intelligence officials, went further. It said the Defense Intelligence Agency analysis, completed last month, assessed North Korea has produced nuclear weapons for ballistic missile delivery, including by intercontinental missiles.
Officials at the agency wouldn't comment Tuesday. The Office of the Director of National Intelligence also wouldn't discuss the report.
It's unclear how North Korea's new capabilities will immediately affect how the U.S. approaches the country's regular missile launches and occasional nuclear tests. The U.S. military has never attempted to shoot a North Korean missile out of the sky, deeming all previous tests to pose no threat to the United States. The U.S. could weigh military action if the threat perception changes.
The calculation of North Korea's nuclear arsenal at 60 bombs exceeds other assessments, which range from around one dozen to about 30 weapons. The assessments are typically an estimate of the amount of plutonium and enriched uranium North Korea has in its inventory rather than how much of that material has been weaponized. It's unclear how many, if any, miniaturized warheads North Korea has built.
Last month's tests of intercontinental ballistic missiles highlighted the growing threat. While those missiles landed at sea near Japan, both were fired at highly lofted angles. Analysts said the weapons could reach Alaska, Los Angeles or Chicago if fired at a normal, flattened trajectory.
North Korea threatened to hit Guam with its Hwasong-12 missiles, which it says can carry a heavy nuclear warhead and before the two ICBM launches had demonstrated the longest potential range of the missiles test-fired by the North.
Not all technical hurdles have been overcome with the missiles, however. North Korea is still believed to lack expertise to allow a missile to re-enter the Earth's atmosphere without burning up. Another work-in-progress: the ability to strike targets with accuracy.
Deb Riechmann in Washington contributed to this report.