in late 1942 and early 1943. During the Battle of Imphal all supplies and reinforcements had to be flown in between 29 March and 22 June 1944 with RAF Regiment units providing vital airfield defence. Following the failure of the Japanese Operation U-Go it was decided to pursue the shattered remnants of the Japanese 15th Army into Burma during the monsoon, in average rainfall of per day and rifle flights were sometimes attached to advancing Indian Army and British East African units, to gain experience in the jungle. Units of 1307 Wing were flown into the newly captured and tactically vital Meiktila airfield on 1 March 1945. Only a roughly box, shared with the army and some United States anti-aircraft artillery, could be held at night and the airfield had to be cleared of enemy each morning before flying could start. As one of the RAF Regiment's proudest battle honours, this three-week battle destroyed the Japanese hold on northern Burma. 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. On 26 November 1944, a Me 262A-2a Sturmvogel of III/KG51 based at Hopsten/Rheine near Osnabruck was the first confirmed ground-to-air kill of a jet combat aircraft. The 262 was shot down by a 40/L60 40mm Bofors gun of B.11 Detachment of 2875 Squadron RAF Regiment, at the RAF forward airfield of Helmond, near Eindhoven. Others were lost to ground fire on 17 and 18 December when the same airfield was attacked at intervals by a total of eighteen Me 262s and the guns of Nos. 2873 and 2875 squadrons RAF Regiment damaged several, causing at least two of them to crash within a few miles of the airfield. In February 1945, Sergeant Pollards's B.6 gun detachment of 2809 Squadron RAF Regiment shot down another Me 262 over the airfield of Vokel. The final appearance of Me 262s over Vokel was in 1945, when yet