The Duke of Edinburgh holds the ceremonial rank of a Marshal of the Royal Air Force, as well as the honorary ranks of Marshal of the Royal Australian Air Force and Marshal of the Royal New Zealand Air Force; owing to their smaller size, however, neither of the latter two air forces have ever used the rank in an operational capacity. Although the rank of Marshal of the Royal Canadian Air Force existed on paper until 1968, the Duke of Edinburgh was never appointed to this rank nor to the other Canadian 5-star ranks before they were abolished that year. In 2012, his son, the Prince of Wales, was appointed to the British rank.