The Royal Canadian Air Force used the rank until the unification of the Canadian Forces in 1968, when army-type rank titles were adopted. A Canadian group captain then became a colonel. In official French Canadian usage, a group captain's rank title was colonel d'aviation. In the Argentine Air Forcecommodoro (commodore) is the rank in Argentine Spanish while in the Chilean Air Force, the rank in Chilean Spanish is colonel de aviacion or "colonel of aviation". Until 1973 it was used by the Royal Malaysian Air Force (RMAF), today the sleeve insignia is that of a full Colonel.