London CNN  —  Catherine, Princess of Wales joined the royal family as they paid their respects to all those who have lost their lives in conflicts at the annual Remembrance Day service in London on Sunday. King Charles III, who recently returned from his first long-haul multi-country tour since his cancer diagnosis, led the family and the nation in honoring fallen servicemen and women at the Cenotaph in Whitehall, near Downing Street. The 75-year-old British monarch laid the first wreath at