The US President will join the Queen, Prince Charles and Camilla, along with 15 world leaders in Portsmouth today to mark the 75th anniversary of the largest combined land, air and naval operation in history. A series of events are planned, including a re-telling of the build up to the Normandy invasion, an address by the Queen and a Red Arrow display. The Queen is due to meet with the world leaders at 9.30am, with President Trump expected to arrive in Portsmouth at 10.50am. Related articles D-Day landmarks given SPECIAL PROTECTION to mark 75th anniversary The Queen MOCKED Donald Trump with rare book gift says US TV host This morning Mr Trump tweeted of the warm welcome he has received from the Royal Family this week. He wrote: "Could not have been treated more warmly in the United Kingdom by the Royal Family or the people. “Our relationship has never been better, and I see a very big Trade Deal down the road. "'This trip has been an incredible success for the President.'@IngrahamAngle" Donald Trump will join the Queen to commemorate the 75th anniversary of the D-Day landings (Image: Getty) Theresa May will host 15 world leaders to honour the Normandy invasion, which resulted in the Allied liberation of Western Europe from Nazi Germany’s control. Figures from every country that fought alongside the UK will be attending, including Emmanuel Macron, Angela Merkel and Justin Trudeau. The countries being represented at the commemorative event have agreed to make a joint statement pledging to ensure the “unimaginable horror” of World War Two is not repeated. Named “the D-Day proclamation”, the 16 signatories - including the UK and the US - commit to working together to “resolve international tensions peacefully”. Related articles ROYAL RIFT: Kate seated apart from ‘RIVAL’ as Queen hosts Trump Why did Donald and Melania Trump NOT bow or curtsy to Queen Today mark's Donald Trump's final day of his UK state visit (Image: Getty) Mr Trump said he was looking forward to visiting Portsmouth to commemorate what “may have been the greatest battle ever in history”. Some 60,000 members of the public are expected to attend the Portsmouth Naval Memorial on Southsea Common, alongside hundreds of veterans. The Queen will give an address at around 12.30pm, shortly followed by a flypast and Royal Navy frigate gun salute. The commemorative event will conclude with a Red Arrow display and a sail past from MV Boudicca. The US President will join the Queen, Prince Charles and Camilla at the event (Image: Getty) In a message to mark the special occasion, the Queen has praised the “immense bravery, ingenuity and determination” of troops who set sail to defeat Nazi forces. The Queen added: “At this time of reflection for veterans of the conflict and their families, I am sure that these commemorations will provide an opportunity to honour those who made extraordinary sacrifices to secure freedom in Europe. “They must never be forgotten.” More than 4,400 allied servicemen were killed in the invasion.All rights reserved for this news site express.co.uk and under his responsibility