These types of communication have been defined in order to give a general survey of the many kinds of written and oral expression of which military men should become masters. Although the task appears huge, proficiency can be gained by attention to the hints suggested in [Chapter I].
In order to apply those suggestions in a practical way, we must now sort out from all of the above types those which should press themselves most upon our attention. Certainly all these types cannot be equally necessary for our immediate study. Possibly if we classify them from the point of view of the occasion for their use, we may see more clearly how to treat them.
CLASSIFICATION ACCORDING TO STRESS
| Message | } | Communicated usually in the presence of the enemy under stress. |
| Field orders | } | |
| Operation orders | } | |
| Orders—Written often in the presence of the enemy under stress. | ||
| Letters of instruction—Written under stress, but with more or less leisure. | ||
| War diaries—Written under stress, but at any time, during twenty-four hours. | ||
| Reports—Written during campaign or peace at comparative leisure. | ||
| General orders | } | |
| Special orders | } | |
| Circulars | } | Written during campaign or peace concerning subjects of a routine nature. |
| Bulletins | } | |
| Memoranda | } | |
| Correspondence | } | |
| Explanations | } | |
| Lectures | } | |
It is evident that we are going to have to write messages, field orders, and operation orders when the enemy is upon us, and when every second is vital. If we must stop in that crisis and putter over the forms and methods of drafting our thoughts, how useless we shall be! When that time comes, one thing alone should occupy our conscious thought—our military idea. That will be sufficient to keep busy the most brilliant intellect.
In order that we shall have, then, perfect freedom to grapple with tactical, strategical, or logistical difficulties on the field of battle, let us learn the forms and methods of messages, field orders, and operation orders as soon as possible.
In so doing we shall discover two things,—
(1) That messages, field orders, and operation orders have a bearing upon each other in the sequence given, and
(2) That the work of framing them will give us the greatest possible practice in writing all other types of communication.
The message.—The general term message may refer to (1) any informal or short communication, (2) any directions or orders too abbreviated to be known as field orders, or (3) any piece of information transmitted in the presence of the enemy.