Several protests are due to take place in the capital during President Trump's visit; however, Trump will likely miss them as he will be attending events at Blenheim Palace, Prime Minister Theresa May's country home at Chequers, and Windsor Castle.
Britain's Opposition members had also asked PM May to cancel a state visit offered to the U.S. when she met Trump in Washington after the latter took path in January 2017.
Then, to rest up from meetings and dinners, he'll head to Scotland to play golf.
The Met will be responsible for the protection and security of the divisive United States president and will also try to ensure lawful protests can be staged.
Awaiting him on the tarmac were three MV-22 Osprey helicopters belonging to the US Marines which are used to transport his staff and security detail on overseas trips.
The antipathy between Mr. Trump and segments of the British public started during the 2016 presidential campaign, when Mr. Trump called for a temporary ban on Muslims entering the United States.
After a North Atlantic Treaty Organisation summit where he provoked a crisis session to force allies to raise their defense spending, Trump landed in Britain having described the closest US ally in Europe as being in turmoil over Brexit.
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What has become increasingly clear is that neither of the Trumps are likely to see much of London during their visit.
Nick Hurd, Britain's Policing Minister, told parliament police expected more than 100 protests across the country, including two large demonstrations in London on Friday, and there were robust and proportionate plans in place.
"They have knives and instead there's blood all over the floors of this hospital", Trump said.
"It's really kind of irrelevant to what we're trying to do and I don't think certainly it doesn't express the opinion of the British people I met", he said. NHS may have challenges but I'm proud to be from the country that invented universal coverage - where all get care no matter the size of their bank balance.
Scotland Yard said the Welcome Trump procession was planning to join with a Free Tommy Robinson march, backing the jailed far-right activist.
On the same day, protests against his visit have been planned outside US Ambassador's residence in Regent's Park where President Trump is reported to be staying overnight.
The two leaders will hold talks the following day at Chequers, the 16th-century manor house which is the prime minister's official country residence which will focus on Russian Federation, trade, Brexit and Middle East.