He was persuaded to try again the next year .
He was was promoted to brigadier on 31 December 1989 , after spending six months on a Service Fellowship writing a paper on the future of the Army and taking the Higher Command and Staff Course .
He was persuaded to try again the next year and was promoted to brigadier on 31 December 1989 , after spending six months on a Service Fellowship writing a paper on the future of the Army and taking the Higher Command and Staff Course .