In what year were the Bomber, Fighter, Coastal, and Training Commands introduced in the RAF?

The introduction of Bomber, Fighter, Coastal, and Training Commands in the Royal Air Force occurred in 1936 as part of a major reorganization following the strategic decisions made in the interwar period. This restructuring aimed to enhance the operational capabilities of the RAF in anticipation of future conflicts. Each command was established to focus on specific roles: Bomber Command for strategic bombing, Fighter Command for air defense, Coastal Command for operations over maritime areas, and Training Command to ensure a steady supply of skilled personnel.

This year was significant not only for the structural changes but also as the global tensions began to rise, leading to World War II. The establishment of these commands was a response to the changing nature of warfare and the increasing importance of air power, highlighting the foresight within the RAF leadership during that period. The other years provided in the options do not align with this significant reorganization; the earlier years had different structural setups, while post-1939, the RAF was engaged directly in wartime operations, with further adjustments made to commands based on the evolving needs of the war.