The North Korea leader warned, however, that Pyongyang will make an "important" decision if Washington persists in undertaking such activity. Asked if he considers Guam part of the USA, he said, "Yeah, it sure is".
North Korea has never carried out its threats to hit U.S. Pacific bases or mainland.
North Korea offered a glimpse into its plans to fire missiles near Guam in photos released by its state media on Tuesday, as leader Kim Jong Un was briefed on the plans drawn up by the army amid heightened tensions with the United States. China is the North's biggest economic partner and source of aid, but says it alone can't compel Pyongyang to end its nuclear and missile programs.
Some analysts said Kim was seeking a similar quid-pro-quo this time around, using the Guam missile threat as leverage.
A White House statement said the U.S. and China agreed North Korea must stop "provocative and escalatory behavior" - this week, Trump waged a verbal attack on North Korea on the background of its nuclear and ballistic program.
Mr Trump and North Korea have been exchanging hostile rhetoric, with the U.S. president threatening to rain "fire and fury" on the North.
The North followed the May launch with two flight tests of its Hwasong-14 ICBM last month.
GettyDonald Trump said the US is ready if Kim attacks Guam
The latest Korea Central News Agency report said Kim ordered his military to be prepared to launch the missiles toward Guam at any time.
But Kim said he would "watch a little more the foolish and stupid conduct of the Yankees" before executing any order.
North Korea frequently tests missiles or holds provocative events on holidays.
If they "persist in their extremely risky reckless actions on the Korean peninsula", then North Korea would take action "as already declared", he was quoted as saying.
A statement by North Korea's official KCNA news agency issued on Saturday said the Trump administration "had better talk and act properly", if it did not want "the American empire to meet its tragic doom".
Marine General Joseph Dunford, chairman of the Joint Chiefs of Staff, reaffirmed the United States commitment to protect South Korea after a meeting with President Moon Jae-in, spokesman Park Su-hyun told reporters in Seoul on Monday.
In a meeting with top aides at the presidential Blue House, Moon said South Korea would work to safeguard peace on the peninsula in cooperation with the United States and other countries. Trump and Macron spoke over phone and discussed the need to confront the increasingly unsafe situation regarding North Korea's destabilising and escalatory behaviour, the White House said.
Tech companies urge Supreme Court to boost cellphone privacy
Carpenter's case will be argued before the court some time after its new term begins in October. This is an important case when it comes to the extent of our privacy rights in the digital age.
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