VOLUME I: PREPARATION. PARTS 1, 2 AND 3. First of four volumes of the official history of the Second World War on the ever-controversial subject of Bomber Command s strategic air offensive against German cities. This takes the story up to the beginning of 1943. Volume II: Endeavour. Part 4 The second of four volumes of Britain s official history of the Second World War devoted to Bomber Command s air offensive against Germany. The book examines Anglo-American conflict in 1943 over whether to concentrate on precision or general bombing, and the Dambusters raid. VOLUME III: VICTORY. PART 5 The official history of the final year of the strategic air offensive against Germany. Contains an assessment of the controversial bombing of Dresden and accounts of the clashes among the allied air chiefs over their aims. VOLUME IV. Annexes and Appendices