This year's U.S. deployment of THAAD in South Korea to guard against North Korea's shorter-range missiles has also drawn fierce criticism from China, which says the system's powerful radar can probe deep into its territory.
North Korea announced its successful test-launch of the ICBM Tuesday, saying the missile was capable of carrying a large and heavy nuclear warhead. "But here, one must not lose his cool, but rather act in a pragmatic and delicate manner", said Putin during a meeting with South Korean President Moon Jae-In.
The US Air Force said Thursday's B-1 bomber flight over the South China Sea was "to exercise the rights of freedom of navigation".
Worry also spread in Washington and at the United Nations, where the United States, Japan and South Korea requested an emergency UN Security Council session Wednesday.
"Now more than ever, it's imperative for Alaskans and the rest of the nation that we be prepared", Sullivan said in a statement.
Late on Thursday, court filings made public disclosed that United States authorities were trying to seize millions of dollars from companies that deal with North Korea, including the country's military, from eight large worldwide banks. He said that the USA was considering "severe things" for North Korea, but that he would not draw a "red line" of the kind that his predecessor, Barack Obama, had drawn but not enforced on the use of chemical weapons in Syria.
The test, which follows several missile launches in recent months, has drawn the rebuke of several world leaders and increased pressure on Trump to take action to back up his rhetoric against the regime of Kim Jong Un.
Navy Capt. Jeff Davis, a Pentagon spokesman, said Wednesday that the missile was sacked from a mobile launcher from Panghyon Airport in northwest North Korea, which had not been used previously.
Addressing North Korea's missile test news during a news conference with Polish President Andrzej Duda Thursday, Trump said, "It's a shame they're behaving this way-they're behaving in a very, very unsafe manner and something will have to be done about it".
The White House had said Trump would use the stopover in Warsaw to showcase his commitment to the North Atlantic Treaty Organisation, which he once called "obsolete", bemoaning allies' repeated failure to spend the recommended 2 percent of GDP on defence.
"Obviously, they are continuing to mature a threat in violation of the United Nations, and that's the way we look at it". Veteran North Korea negotiator, and former Governor of New Mexico, Bill Richardson, also criticized Trump's Twitter habits during an appearance on BBC Newsnight Thursday. "We will use them if must, but we prefer not to have to go in that direction", she said during an emergency Security Council meeting.