"We are confident that there will be huge demonstrations against Trump wherever he visits", said Chris Nineham, of the Stop the War Coalition, which is helping to stage the so-called "carnival of protest".
The president and first lady will spend Thursday evening at a black-tie gala for a hundred guests at impressive Blenheim Palace in Oxfordshire, an enormous country manor where Winston Churchill was born.
From there he will travel to hold talks with the prime minister at her Chequers country retreat in Buckinghamshire on Friday, before meeting the Queen at Windsor Castle.
The Trump administration has committees "from every department" dedicated to figuring out how to put together a U.S. -UK trade deal "really rapidly and efficiently" following Britain's exit from the European Union, Ambassador Robert "Woody" Johnson said in a conference call.
Protestors wave flags and carry banners as they take part in a rally in Brussels on July 7, 2018, against the forthcoming North Atlantic Treaty Organisation summit and scheduled visit of US President Donald Trump on July 11 and12.
The Lord Mayor of London, vocal anti-Trump critic Sadiq Khan, has approved a giant, inflatable float that resembles Donald Trump as a diaper-wearing baby, to fly over London during Trump's visit, according to this Inquisitr report.
Trump will follow the likes of Richard Nixon, George Bush Sr and George W. Bush in visiting the prime minister at her country residence, Chequers.
The Prime Minister's spokesperson said: "We are a free and open democracy and we believe in the right to protest".
Thousands are expected to protest in London on Thursday and Friday against the president's working visit.
Asked whether Chequers had been chosen to avoid planned protests in London, the spokeswoman said this was not the case and the venue was better for "more informal meetings". In January, Mr. Trump abruptly called off a planned visit to London because he wasn't happy with the deal the USA made to move its embassy in the city.
Others are holding marches through the city and in Scotland - where President Trump owns golf courses.
"No, the president is not avoiding anything", he told a press briefing.
The powwow between the two leaders, whose countries are the closest of allies, will come three days before Mr. Trump's summit with Russian President Vladimir Putin in Helsinki.
Only two USA presidents - Barack Obama and George W. Bush - have previously been invited for full state visits.
BBC diplomatic correspondent Robbins said while the government realises it is a controversial trip, President Trump is "fully entitled" to be welcomed into the United Kingdom in this way.
Mrs. May has publicly admonished Mr. Trump, including his trade agenda, and the two engaged in a Twitter spat a year ago after Mrs.
Smyth said he hopes that he'll have the chance to thank President Trump.