November 11th is Armistice Day, which marked the end of the First World War at the 11th hour. The following Sunday is known as Remembrance Sunday.
Paper poppies are sold by the Royal British Legion to fund their work supporting those who have served, and their families. They are worn as a mark of respect for the sacrifice made by those who serve.
Blood red poppies grew in the killing fields of World War I and are a poignant symbol of the bloodshed. It is always hoped that people will learn the lessons of history.