Published on Jun 5, 2019 President Trump joined the Queen and Theresa May to commemorate the 75th anniversary of the D-Day landings. Subscribe to our channel here: https://goo.gl/31Q53FBut the international cooperation being celebrated this week wasn't as straightforward as it is generally believed to be.For a long time the British and the Americans argued about whether D-Day was even worth trying. But even when they agreed, a victory was never certain. Winston Churchill wanted to focus on the Mediterranean campaign and wrote to President Roosevelt in 1943 casting doubt over whether D-Day should happen in 1944. But, he was persuaded by the Americans to go ahead.