The RAF Regiment fought as field, armoured car and light anti-aircraft (LAA) squadrons and flights in North Africa, the Middle East, Italy, the Balkans and North Western Europe, as well as 68 LAA squadrons defending the UK against V1 attacks as part of Operation Diver, alongside the Royal Artillery's heavy anti-aircraft and LAA batteries. Amongst other things, RAF Regiment units were the first British forces to reach Paris, amongst the first to enter Brussels, and Squadron Leader Mark Hobden and his force arrested Hitler's successor as Fuhrer, Grand Admiral Karl Doenitz, at his HQ in Flensburg.