"It's important to remember some of the poor devils who didn't make it like I did," 99-year-old Royal Air Force Veteran Dennis Bishop told AFP.The first act on a chilly Monday morning in London was the draping of two huge Union Jack flags on the Cenotaph war memorial that honours Britain's war dead.The usually bustling central London streets were deserted, except for The Mall outside Buckingham Palace, where hundreds of people set up camp with chairs and rugs. "It's so emotional to be here today. Eighty years of peace and peace of mind, I don't know if we understand what achievement it is. Where would we be without them?" "We owe a debt of gratitude to those prepared to make the ultimate sacrifice for our country," Prime Minister Keir Starmer wrote on X late Sunday.