The Air & Space Commander (ASC) is the senior Royal Air Force war fighter responsible for the conduct of air operations at home and overseas.
Working together with other Services and international operational commanders, he oversees the generation and employment of air power in all environments.
This wide remit includes the Air Defence of the United Kingdom, the delivery of intervention operations abroad and the conduct of humanitarian and disaster relief operations.
“It’s a huge honour for me to be appointed as the new Air and Space Commander, returning to the RAF after a tour as Assistant Chief of Defence Staff Military Strategy at the Ministry of Defence, where I saw first-hand Air’s exceptional contribution across Defence. I would like to personally thank Air Marshal Marshall for all he has done as the Air and Space Commander and look forward to working with him in his new role as Chief of Joint Operations.
We are operating in a time of ever-increasing threat and challenge, and our role as Defence’s first responder has never been more important. What we do really matters, and I look forward to working with you all and meeting as many of you as possible in the coming weeks and months."
Air Marshal Mark Flewin was commissioned into the Royal Air Force in 1998. After pilot training, he was posted to the Jaguar and became a Qualified Weapons Instructor, completing several front-line tours including operations over Iraq.
Part of the first cohort of pilots to fly the Typhoon in 2005, he remained committed to the development and evolution of the platform, as Officer Commanding 1 (Fighter) Squadron, Station Commander RAF Coningsby, and the Typhoon Force Commander. Latterly, as Air Officer Commanding Number 1 Group, he had responsibility for the RAF’s front-line aircraft, the Air and Space Warfare Centre, and display activity, including the Battle of Britain Memorial Flight, the Red Arrows and the Falcons parachute team.
Air Marshal Flewin has held a variety of command posts, including operational deployments to the Combined Air and Space Operations Centre in Qatar, and 903 Expeditionary Air Wing in support of Op SHADER. In addition to flying the Jaguar and Typhoon, he has displayed both the Spitfire and Hurricane as part of the Battle of Britain Memorial Flight.
Key staff appointments have included: Chief of Staff within the Air Staff at the Ministry of Defence; Chief of Staff, Joint Effects at the UK Permanent Joint Headquarters; and Head of Space Operations, Planning and Training at UK Space Command. After commanding Number 1 Group, he moved to the Ministry of Defence in April 2025 as Assistant Chief of Defence Staff Military Strategy, before being appointed Air and Space Commander in July 2026.
Appointed CBE in 2018, Air Marshal Flewin has completed the Advanced and Higher Command and Staff Courses, the Generalship Programme, the Rising Leaders’ Programme, the UK Pinnacle Course and the London Business School’s Senior Executive Programme. Married to Stephanie and with two teenage children, he enjoys civilian display flying, road cycling and middle-distance running.
2018 - Commander of the Order of the British Empire (CBE)
