of the TARGET in relation to a line perpendicular
whether forced by the enemy or voluntary, including
to the spotting line.
a withdrawal, retirement, or delaying action.
SITREP-- A situation report.
REVERSE SLOPE-- Any slope that descends away
from the enemy.
SKETCH-- A hasty, pictorial drawing showing only
desired map features and objects in relative
REVOLT-- A casting off of allegiance or a refusal to
position; usually for a specific use.
submit to established authority.
SKIRMISHERS-- A line of troops in extended order
REVOLUTION-- A rebellion that succeeds in
during a tactical exercise or attack.
overthrowing an old government and establishing a
new one.
SNAP-- In commands or signals, the quality that inspires
immediate response.
RIGHT (LEFT) FLANK-- The extreme right (left)
element or edge of a body of troops in relation to the
STATIC-- Any electrical disturbance caused by
enemy, regardless of the direction in which the body
atmospheric conditions. Interferes with radio com-
of troops is facing.
munications.
ROADBLOCK-- A barrier or obstacle to block or limit
STEP-- The distance from heel to heel between the feet
the movement of hostile vehicles along a road.
of a marching man; normally 30 inches.
ROUTE MARCH-- The advance in column on roads.
SUPPLEMENTARY POSITION-- An extra position
other than the designated primary or alternate
SCREEN FIRE-- A curtain of smoke that protects a
position.
force from enemy ground observation.
SUPPLY POINT-- A point where supplies are issued
SEARCHING FIRE-- Fire distributed in depth by
(for example, depot, railhead, truckhead, airhead, or
successive changes in elevation of a weapon.
navigation-head).
SECTION-- A military unit that is smaller than a platoon
SUPPORT-- The action of a force that aids, protects,
and larger than a squad; the basic tactical unit in the
complements, or sustains another force according
weapons platoon of the rifle company.
to a directive requiring such actions; a unit that helps
SECTOR-- A clearly defined area that a given unit
another unit in battle; the reserve of a rifle company
protects or covers with fire.
or platoon in the attack or defense; an element of a
command that assists, protects, or supplies other
SECTOR OF FIRE-- A section of terrain designated by
forces in combat.
boundaries that is assigned to a unit or to a weapon
to cover by fire.
SUPPORTING FIRE-- Fire delivered by weapons of
supporting units to assist or protect a unit in combat.
SECURITY-- Measures taken by a command to protect
itself from espionage, observation, sabotage,
SUPPORTING WEAPONS-- Weapons other than
annoyance, or surprise.
those with which a rifle unit is normally equipped.
SECURITY AREA-- The area forward of the FEBA
TERRAIN-- An area of ground, considered as to its
assigned to a battalion or company. A battalion's
extent and natural features, in relation to its use in a
security area extends to whatever distance security
particular operation.
forces, uncontrolled by the battalion, are employed.
TOPOGRAPHICAL CREST-- The highest point on
A company's security area extends 400 to 500 yards
elevated terrain.
(maximum effective range of small-arms fire) to the
most forward extension of the company's lateral
TRAJECTORY-- The path described by a projectile in
boundary.
flight.
SHOCK ACTION-- Actual hand-to-hand combat
TRAVERSING FIRE-- Fire distributed in width by
between opposing troops; an offensive movement
successive changes in direction of a weapon.
by fast-moving forces in which they tend to overrun
UNDERGROUND-- A civilian organization that
the enemy by the force of their own momentum.
supports the resistance movement through
SHORT-- A spotting or an observation used by a spotter
covert (secret) actions. Such actions include
or an observer to indicate that a burst fell SHORT
intelligence collection, subversion, sabotage,
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