Peach succeeded General Sir Nick Houghton as Chief of the Defence Staff on 14 July 2016.[3] He studied geography, economics, and social history at the University of Sheffield, graduating with a Bachelor of Arts (BA) degree in 1977.[8] Promoted to squadron leader on 1 July 1986,[9] he became a Qualified Weapons Instructor[8] and received the Queen's Commendation for Valuable Service in the Air in the 1990 Birthday Honours List.[8] Following promotion to group captain on 1 July 1996,[12] 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.[15] Promoted to air vice marshal on 1 August 2003,[16] Peach served as Director General Intelligence Collection from July 2003 to March 2006.[31] For his services in the role, Peach was awarded the Joint Staff Medal from Italy, appointed a Commander First Class of the Order of King Abdulaziz by Saudi Arabia, and award the Commander of the Legion of Merit and National Intelligence Distinguished Service Medal by the United States.