It plans the mobilization of the navy as a whole, the exercises of the fleet, the training of officers and men to insure that the plans for mobilization and fleet exercises shall be efficiently carried out, the exercises of the various craft, and of the various mechanisms of all kinds in those craft, and even the drills of the officers and men, that insure that the various craft and mechanisms shall be handled well.

This does not mean that strategy concerns itself directly with the training of mess cooks and coal-passers; and it may be admitted that such training is only under strategy's general guidance.

It may be admitted, also, that a considerable part of the training of men in using mechanisms is caused by the requirements of the mechanism itself; that practically the same training is needed for a water-tender in the merchant service as for a water-tender in the navy.

Nevertheless, we must either declare that the training of mechanicians in the nary has no relation to the demands of preparation of the navy for war, or else admit that the training comes under the broad dominion of strategy.

To admit this does not mean at all that the training of a naval radio electrician is not directed in its details almost wholly by electrical engineering requirements; it merely means that the training must be such as to fulfil the requirements of strategy, for otherwise it would have no value.