He then reassures Mr Calvo, who he describes as a "hell of a guy", telling him the USA military is "rock solid". In the President's words they are behind us "1000 percent."As the head of the Government of Guam, I appreciate their reassurances that my family, my friends, everyone on this island, are all safe".
"I just wanted to pay my respect", Trump said to Calvo over the phone.
"We are with you 1,000 per cent, you are safe", he adds. All over the world they're talking about Guam and they're talking about you.
"I think - tourism, I can say this, your tourism, you're going to go up like tenfold with the expenditure of no money, so I congratulate you", Trump said during a phone call released by Calvo on his Facebook page.
"You know, they're showing so much, it's such a big story in the news and it just looks like a handsome place", he says.
Mr Calvo responded by agreeing his home was "paradise" and had "99 per cent occupancy". But then the conversation took a unusual turn when Donald Trump took the opportunity to throw shade on President Obama and assure Calvo that this standoff is actually great for Guam's tourism economy.
North Korea says its Hwasong-12 missiles would take just 1,065 seconds to complete their 3,356km flight over Japan before splashing down in waters off the coast of Guam.
"I'm just so thankful".
And he told the former hotel magnate, "We have 95 percent occupancy and after all of this stuff calms down we're going to have 110 percent occupancy".
"Do not look at the flash or fireball - it can blind you", the missile threat prep fact sheet advises those who are caught outside.
"As far as I'm concerned, as an American citizen, I want a president that says that if any nation such as North Korea attacks Guam. that they will be met with hell and fury", Calvo said Wednesday on Fox News' "Tucker Carlson Tonight". God Bless the people of Guam and God Bless the United States of America.
Trump reciprocated the sentiment and suggested that the stalemate between the United States and North Korea could have had a different outcome, had he been the president in years past.