Original sentence: Air Commodore David Case is the highest ranking black officer in the Royal Air Force of the United Kingdom, and at the age of 47 is the highest ranking black officer ever to serve in Britain's armed forces
Edited sentence: Air Commodore David Case is the highest ranking black officer in the Royal Air Force of the United Kingdom, and as of 2000, at the age of 47, he became the highest ranking black officer ever to serve in Britain's armed forces