Coastal and Training Commands came into existence on 1 May, by renaming Coastal and Inland Areas. On 14 July Air Defence Great Britain was divided into Fighter and Bomber Commands. On the same day the Air Officers Commanding the four commands assumed the title and status of Air Officers Commanding-in-Chief: AM Sir Arthur Longmore (Coastal); AM Marshal Sir Charles Burnett (Training); AM Sir Hugh Dowding (Fighter); and AM Sir John Steel (Bomber).