Complex sentence: From 1965 to 1967, he commanded 51st Gurkha Brigade in Borneo, during the Indonesian Confrontation; he was promoted to brigadier on 31 December 1966.
Split into simpler sentences: From 1965 to 1967, he commanded 51st Gurkha Brigade in Borneo, during the Indonesian Confrontation. He was promoted to brigadier on 31 December 1966.