King Charles will lead the nation in remembrance of those who lost their lives in military action, at the Cenotaph in central London.
The King will be joined at the National Service of Remembrance by other members of the Royal Family, including the Prince and Princess of Wales, but not Queen Camilla who has come down with a chest infection.
The service honours the contribution of military and civilian servicemen and women in World War One and World War Two, and other conflicts.
Events to mark Remembrance Sunday - observed on the closest Sunday to Armistice Day - will take place around the country and involve two minutes of silence. observed at 11:00, to remember those who have died.