Look back as Queen Elizabeth II meets with U.S. Presidents

Britain's Queen Elizabeth II and US President Donald Trump inspect the guard of honour formed of the Coldstream Guards during a welcome ceremony at Windsor Castle in Windsor, west of London, on July 13, 2018 on the second day of Trump's UK visit. US President Donald Trump launched an extraordinary attack on Prime Minister Theresa May's Brexit strategy, plunging the transatlantic "special relationship" to a new low as they prepared to meet Friday on the second day of his tumultuous trip to Britain. (Photo by Matt Dunham / POOL / AFP) (Photo by MATT DUNHAM/POOL/AFP via Getty Images)

President Barack Obama and Queen Elizabeth II during a State Banquet in Buckingham Palace on May 24, 2011 in London, England. The 44th President of the United States, Barack Obama, and his wife Michelle are in the UK for a two day State Visit at the invitation of HM Queen Elizabeth II. During the trip they will attend a state banquet at Buckingham Palace and the President will address both houses of parliament at Westminster Hall.

President George W. Bush and First Lady Laura Bush greet Britain's Queen Elizabeth II and Prince Philip, the Duke of Edinburgh, at the North Portico of the White House for a State Dinner in Washington on May 7, 2007.

President Bill Clinton talks with Elizabeth II along with the First Lady Hillary Rodham Clinton and daughter Chelsea at the Garden Entrance of Buckingham Palace 14 December, 2000 in London, England. The Clintons had tea with the Queen as they were wrapping up their three day trip to Ireland, North Ireland and the UK.

President George Bush, Queen Elizabeth II and First Lady Barbara Bush shake hands with Mike Gallego, Rick Honeycutt, and Jose Canseco of the Oakland Athletics at game between the Athletics and the Baltimore Orioles on May 15, 1991.

President Ronald Reagan rides horses with Britain's Queen Elizabeth at Windsor Castle near London, Britain on June 8, 1982.

President Jimmy Carter joins Queen Elizabeth II and the Duke of Edinburgh at Buckingham Palace when he and six other world leaders attended dinner in the Blue Drawing Room on May 7, 1977.

President Gerald Ford and Britain's Queen Elizabeth dance during a state dinner in honor of the Queen and Prince Philip at the White House in Washington on July 7, 1976.

Queen Elizabeth escorts President Richard Nixon through Buckingham Palace during a visit by Nixon in 1969.

Queen Elizabeth II and Prince Philip pose with President John F. Kennedy and First Lady Jacqueline Kennedy at Buckingham Palace in London, Britain on June 5, 1961.

U.S. President Dwight Eisenhower (C foreground) talks with Britain's Queen Elizabeth (L) and Prince Philip (R) following their arrival at MATS Terminal National Airport in Washington, U.S., October 17, 1957.