Britain's Queen Elizabeth II (C) stands with US President Donald Trump (R) as US First Lady Melania Trump (L) during a welcome ceremony at Buckingham Palace in central London on June 3, 2019, on the first day of the US president and First Lady's three-day State Visit to the UK. - Britain rolled out the red carpet for US President Donald Trump on June 3 as he arrived in Britain for a state visit already overshadowed by his outspoken remarks on Brexit. (Photo by Adrian DENNIS / AFP)