But his agenda reveals that he will largely avoid London - where tens of thousands plan to protest against him and a 20-foot balloon that depicts him as an angry orange baby will fly over the Houses of Parliament in Westminster.
Asked whether the president was aware of planned protests - including a "Trump baby" balloon being flown over Parliament - Johnson said: "I think we are all aware of these things but the president is focused on what his objectives are".
United States president Donald Trump is set to touch down in Britain for a highly controversial visit after sparking a new firestorm on the worldwide stage.
As President Trump is set to embark on a three-day visit to the United Kingdom on July 12, where he will meet with British Prime Minister Theresa May and Queen Elizabeth, there are fears that demonstrations over his visit could turn violent. "Everywhere he goes there are protests, so I don't think it really makes a big impression on him".
The couple will attend a black-tie dinner at the Grade I-listed Blenheim Palace in Oxfordshire hosted by Theresa May.
"I get along with her very well, I have very good relations".
"There is no stronger alliance than that of our special relationship with the USA and there will be no alliance more important in the years ahead", the British leader said.
'I'd like to see them be able to work it out so it could go quickly, ' he said.
"It's important for us to send a powerful signal to those who are resisting and campaigning in America that we are standing in solidarity with them", Rehman said.
Trump is technically on a lower-level working visit this week.
Mr Trump is believed to be spending the weekend playing golf at his Turnberry resort in South Ayrshire, which he bought in 2014, although there has been no official confirmation of his plans.
On arrival, Trump will not be met by Scottish First Minister Nicola Sturgeon - a fierce critic - and instead by the British government's Scotland minister David Mundell.
"But from the public, the welcome will be far from warm", he added, saying there would be protests across the country against Trump's "abysmal record on human rights, his repugnant attitude towards women and his disgusting treatment of minorities".
The divisive American leader, arriving after a North Atlantic Treaty Organisation summit in Brussels, will be largely away from London during a tour expected to bring at least tens of thousands of people onto British streets.
Here is what the Donald has planned in his jaunt to Britain...
His "America First" policies, including the decision to pull the USA out of the Paris climate accord and the nuclear deal with Iran, also have brought him into conflict with Britain's leaders over substantive geopolitical issues.