 In March 1937, the then Director of Operations Group Captain Robert Saundby, complained that the role for Coastal Command in war, namely supporting the bomber offensive, and second, the support of naval forces along the British coastline, were too limited and was in danger of diverting the Command from its main concern: ASW. In October the Deputy Chief of the Air Staff (DCAS) Air Vice Marshal Richard Peirse confirmed that there was no formal role for the service or location of its units. Peirse did reverse the decision to have strategic bombing support as the primary function. This was changed to trade defence. Coastal Command was only to be used for other purposes if trade routes were suffering little interference and the intensity of air attack on Britain, or air attacks on enemy targets, required all available air units for those purposes. However, in December 1937, the Naval and Air Staffs met again and changed the priority to North Sea reconnaissance. The Naval Staff insisted that commerce raiders presented the greatest danger, and aircraft could prove decisive only in locating enemy warships. ASW remained in third place, behind direct co-operation with surface fleets. In December 1938, this was changed again, and ASW moved up to second priority. In August 1939 it was moved to first priority. When Coastal Command went to war, its first task was to co-operate with the Navy to prevent enemy vessels from escaping into the North Sea and Atlantic Oceans. Secondly, it was to provide ASW support where and when it could. These steps are significant as the language indicates a change from passive reconnaissance of enemy warships and submarines to an active directive which involved the attack of the vessels by Coastal Command aircraft.
