Complex sentence: Air Marshal John William "Jake" Newham AC (born 30 November 1930) is a retired senior commander of the Royal Australian Air Force, serving as its Chief of the Air Staff from 1985 until 1987.
Split into simpler sentences: Air Marshal John William "Jake" Newham AC (born 30 November 1930) is a retired senior commander of the Royal Australian Air Force (RAAF). He served as Chief of the Air Staff from 1985 until 1987.