Complex sentence: He went on to be Deputy Commander-in-Chief, RAF Strike Command in 1979, Commander-in-Chief Royal Air Force Germany and Commander Second Tactical Air Force in 1981 and Air Member for Personnel in 1983 before retiring in 1986.
Split into simpler sentences: He went on to be Deputy Commander-in-Chief, RAF Strike Command in 1979, Commander-in-Chief Royal Air Force Germany and Commander Second Tactical Air Force in 1981. His last appointment was as Air Member for Personnel in 1983 before retiring in 1986.