Actually, while tactical considerations may predominate during battle, their influence is not confined to the immediate presence of the enemy. Tactical dispositions are frequently adopted for convenience, for time saving, or for other reasons, long before entry into the immediate presence of the enemy. Nor do strategical considerations end when battle is joined. Tactics, unguided by strategy, might blindly make sacrifices merely to remain victor on a field of struggle. But strategy looks beyond, in order to make the gains of tactics accord with the strategic aim. Strategy and tactics are inseparable. It is thus the duty of tactics to ensure that its results are appropriate to the strategic aim, and the duty of strategy to place at the disposal of tactics the power appropriate to the results demanded. The latter consideration imposes upon strategy the requirement that the prescribed aim be possible of attainment with the power that can be made available. Consequently, while the attainment of the aims of strategy, generally depends upon the results gained by tactics, strategy is initially responsible for the success of tactics. It is therefore in the province of strategy to ensure that the attainment of tactical objectives furthers, exclusively, the aims of strategy, and also that the tactical struggle be initiated under conditions favorable for the attainment of the designated objectives. Command of the Armed Forces. The initial requisite to the effective use of the armed forces is an agency authorized to direct them. Command directs the armed forces. It is vitalized and personified in the commander, the human directing head, both of the whole and of organized groupings in descending scale of importance. Its responsibility, during peace, is the perfection of the armed forces to the point of readiness for war and, during the conflict, their effective employment. Training for command, to be effective, is necessarily dependent upon an understanding of the position occupied by the commander, and of the role which he plays. Accordingly, this understanding is an essential in the study of that aspect of command training which has as its purpose the development of ability to reach sound decision.