Complex sentence: Following promotion to group captain on 1 July 1996, Peach became Director Defence Studies (Royal Air Force) in 1997, commissioning scholarship, editing books and writing articles on air power: he secured an MPhil from Downing College, Cambridge at that time.
Split into simpler sentences: Following promotion to group captain on 1 July 1996, Peach became Director Defence Studies (Royal Air Force) in 1997, commissioning scholarship, editing books and writing articles on air power. He secured an MPhil from Downing College, Cambridge at that time.