"At present one clear factor in the problem is that the offensive is as much at an advantage in the air as it is at a disadvantage on land. This comparison, in conjunction with our present deficiencies, has suggested that the offensive role of an expeditionary force might be entrusted to the Air Force. Apart from its greater promise of effect, it could be conducted from our own shores or from bases more easy to secure and more remote from the enemy than the zone an army requires; and it would avoid many of the complications involved, and evolving, when we land an army on the Continent. The Army could then be left to fulfil its Imperial garrison and police duties, with the possible addition of covering the oversea bases of our Expeditionary Air Force."