[43]. Order, close: The formation in which the units, in double rank, are arranged in line or in column with normal intervals and distances.
[44]. Order, extended: The formation in which the units are separated by intervals greater than in close order.
[45]. Pace: Thirty inches; the length of the full step in quick time.
[46]. Point of rest: The point at which a formation begins. Specifically, the point toward which units are aligned in successive movements.
[47]. Rank: A line of men placed side by side.
[48]. Right: The right extremity or element of a body of troops.
[49]. Note. In view of the fact that the word "Echelon" is a term of such common usage, the following definition is given: By echelon we mean a formation in which the subdivisions are placed one behind another, extending beyond and unmasking one another either wholly or in part.—Author.
| BATTALION IN ECHELON | |
|---|---|
 COMPANIES UNMASKING WHOLLY |  COMPANIES UNMASKING IN PART |
INTRODUCTION
[50]. Object of military training. Success in battle is the ultimate object of all military training; success may be looked for only when the training is intelligent and thorough. (1)