Royal British Legion on Instagram: ""I was totally surprised and delighted to be invited to Buckingham Palace! It was a special day and a real honour for me to meet The King and Queen and be presented with my birthday card. I am humbled to reach such a great number, especially when I think of those who fell on the Normandy beaches all those years ago." D-Day veteran Jim Miller received a special invitation to Buckingham Palace where he was presented with his 100th birthday card from Their…