During the phone call Mr Calvo laments criticism of Mr Trump, saying "from a guy that's being targeted, we need a president like you". "We've got 95 per cent occupancy and after all this stuff comes down we're going to have 110 per cent occupancy".
DPRK's military said in a statement on Thursday that it would prepare a plan by mid-August to strike Guam, a USA island territory in the Western Pacific, with intermediate missiles.
Calvo said he was called by White House chief of staff John Kelly and Trump Saturday morning local time and "both assured me that the people of Guam are safe".
"The thing that's important now is not that those back channels exist, but that we're using them", Perry said.
"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", he continued.More news: N.Korea Snubs S.Korea at ASEAN Forum
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He then reassures Mr Calvo, who he describes as a "hell of a guy", telling him the U.S. military is "rock solid".
"You know, they're showing so much, it's such a big story in the news and it just looks like a attractive place", he says. "But you're going to be taken care of".
The president called the USA military "incredible, "rock solid" and "the best in the world by a factor of five".
The Government has instructed residents to be proactive and create emergency supply kits, a family emergency plan and a list of concrete shelters in their vicinity.
Even as tensions between the U.S. and North Korea have intensified, along with President Donald Trump's rhetoric, USA diplomats have quietly and steadily been in contact with their North Korean counterparts. Doomsday Strategist Steve Bannon is already working on post-apocalypse legislation which will drastically reduce the number of legal zombie and mutant immigrants seeking to enter what remains of the United States.