I had served three years in the New York National Guard, finally becoming a captain. This experience was invaluable to me. It enabled me at once to train the men in the simple drill without which they would have been a mob; for although the drill requirements are simple, they are also absolutely indispensable. But if I had believed that my experience in the National Guard had taught me all that there was to teach about a soldier's career, it would have been better for me not to have been in it at all. There were in the regiment a number of men who had served in the National Guard, and a number of others who had served in the Regular Army. Some of these latter had served in the field in the West under campaign conditions, and were accustomed to long marches, privation, risk, and unexpected emergencies. These men were of the utmost benefit to the regiment. They already knew their profession, and could teach and help the others. But if the man had merely served in a National Guard regiment, or in the Regular Army at some post in a civilized country where he learned nothing except what could be picked up on the parade ground, in the barracks, and in practice marches of a few miles along good roads, then it depended purely upon his own good sense whether he had been helped or hurt by the experience. If he realized that he had learned only five per cent of his profession, that there remained ninety-five per cent to accomplish before he would be a good soldier, why, he had profited immensely. To start with five per cent handicap was a very great advantage; and if the man was really a good man, he could not be overtaken. But if the man thought that he had learned all about the profession of a soldier because he had been in the National Guard or in the Regular Army under the conditions I have described, then he was actually of less use than if he had never had any military experience at all. Such a man was apt to think that nicety of alignment, precision in wheeling, and correctness in the manual of arms were the ends of training and the guarantees of good soldiership, and that from guard mounting to sentry duty everything in war was to be done in accordance with what he had learned in peace. As a matter of fact, most of what he had learned was never used at all, and some of it had to be unlearned. The one thing, for instance, that a sentry ought never to do in an actual campaign is to walk up and down a line where he will be conspicuous. His business is to lie down somewhere off a ridge crest where he can see any one approaching, but where a man approaching cannot see him. As for the ceremonies, during the really hard part of a campaign only the barest essentials are kept.