still larger body.

FILE: Two men, the front-rank man and the corresponding man of
the rear rank. The front-rank man is the FILE LEADER. A file
which has no rear-rank man is a BLANK file. The term FILE applies
also to a single man in a single-rank formation.

FILE CLOSERS: Such officers and noncommissioned officers of a
company as are posted in rear of the line. For convenience, all
men posted in the line of file closers.

FLANK: The right or left of a command in line or in column: also
the element on the right or left of the line.

FORMATION: Arrangement of the elements of a command. The placing
of all fractions in their order in line, in column, or for battle.

FRONT: The space, in width, occupied by an element, either in
line or in column. The front of a man is assumed to be 22 inches.
Front also denotes the direction of the enemy.

GUIDE: An officer, noncommissioned officer, or private upon whom
the command or elements thereof regulates its march.

HEAD: The leading element of a column.

INTERVAL: Space between elements of the same line. The interval
between men in ranks is 4 inches, and is measured from elbow to
elbow. Between companies, squads, etc., it is measured from the
left elbow of the left man or guide of the group on the right
to the right elbow of the right man or guide of the group on
the left.

LEFT: The left extremity or element of a body of troops.

LINE: A formation in which the different elements are abreast
of each other.

ORDER, CLOSE: The formation in which the units, in double rank,
are arranged in line or in column with normal intervals and
distances.

ORDER, EXTENDED: The formation in which the units are separated
by intervals greater than in close order.

PACE: Thirty inches; the length of the full step in quick time.

POINT OF REST: The point at which a formation begins. Specifically,
the point toward which units are aligned in successive movements.

RANK: A line of men placed side by side.

RIGHT: The right extremity or element of a body of troops.

PART I.--DRILL.

SECTION 2.--INTRODUCTION.

1.[4] Success in battle is the ultimate object of all military
training; success may be looked for only when the training is
intelligent and thorough.

[Footnote 4: The numbers refer to paragraphs in the Infantry Drill
Regulations, 1911.]

2. Commanding officers are accountable for the proper training
of their respective organizations within the limits prescribed
by re