From Burma ’44: The Battle That Turned World War II in the East, by James Holland (Grove Atlantic, 2024), Kindle pp. 145-147:
Even before Tehran, that a restructuring of the air component was urgently needed was crystal clear to Mountbatten, and the advent of his new command helped provide the impetus for sweeping changes in December 1943. At the Chiefs of Staffs talks in Cairo at the end of November he was able to win the support of General ‘Hap’ Arnold, the Chief of the United States Air Force, for the creation of Allied Air Command. Arnold, along with General George Marshall, the US Army Chief of Staff, and General Alan Brooke, the British Chief of the Imperial General Staff, agreed that Mountbatten, as Supreme Commander, should be entitled to reorganize the air forces within his command as he saw fit. This support was absolutely essential, because what Mountbatten wanted was a truly integrated and coordinated new air command.
By the time the SEAC staff and wider commanders in the theatre had returned to Delhi and Chungking, the Tehran Conference was over and the plans to outflank Burma by sea and also invade the Andamans had been cancelled. General Stilwell, needless to say, was furious, believing Mountbatten’s plans would lead to a greater air focus on the British effort and away from China, still desperately in need of Allied supplies. He told Mountbatten he was lodging a formal protest. Joining with him, as an act of solidarity with his immediate superior, was General George Stratemeyer, commander of the 10th US Army Air Force.
Mountbatten responded with decisive firmness, however, safe in the knowledge that he had Arnold’s and Marshall’s support. He told Stilwell plainly that it was, as far as he was concerned, totally unacceptable to have a subordinate commander holding independent responsibilities for combat air operations. ‘I was,’ he told Stilwell, ‘overriding the objections and publishing a directive that day integrating the British and American Air Forces.’
The day in question was Saturday, 11 December, and the Supreme Commander addressed his entire staff of some 250 men at 8.45 am in the new War Room in his New Delhi HQ. As far as he was concerned, it was a historic day. From henceforth, he announced, the RAF’s Bengal Command and the 10th US Army Air Force would become integrated as one into Eastern Air Command. Overall air commander in theatre would be the British Air Chief Marshal Sir Richard Peirse, but the new commander of Eastern Air Command was to be Stratemeyer, who despite his rather half-hearted protest in support of Stilwell now readily accepted the post.
Importantly for the planned coming offensive in the Arakan, in the days that followed further reorganization was completed. On 15 December, Troop Carrier Command was formed, incorporating both a USAAF transport group and an RAF transport wing under the command of Brigadier-General William D. Old, a tough and indefatigable commander who was well known for frequently flying operationally himself. Three days later, 3rd Tactical Air Force was also formed from the US 5320th Air Defense Wing and the RAF’s 221 and 224 Groups, which included the Woodpeckers and other Spitfire squadrons. Finally, into the mix were added a number of army air-supply companies, which used special signals arrangements to connect forward HQs and delivery airfields with supply and base airfields.
Far Outliers 