In
modern warfare, 'overwatch' is the state of one small
unit or military vehicle supporting another unit, while they are executing
fire and movement tactics. An ''overwatching'', or ''supporting'' unit has taken a position where it can observe the terrain ahead, especially likely enemy positions. This allows it to provide effective
covering fire for advancing friendly units. The term ''overwatch'' originates in U.S. military doctrine.
An ideal overwatch position provides
cover for the unit, and unobstructed
lines of fire. It may be on a height of ground or at the top of a ridge, where a vehicle may be able to adopt a
hull-down position. If the overwatching unit is in a position to fire over advancing friendly units, great care must be taken not to let fire fall short. The friendly units should be within tracer burnout (the range at which
tracer rounds are visible).
Overwatch can be performed by
platoons during company fire and movement, by individual
armoured fighting vehicles (esp.
tanks) or infantry
sections, in platoon fire and movement, or even by
fireteams or individual soldiers, in the final stages of an assault.
Overwatch tactics and ''firing at the short halt'' were especially important in
armoured warfare before modern tank
gun stabilizers were developed, since moving tanks were unlikely to hit any target. Even in the most modern tanks, however, crews can locate and hit targets better when at a halt.
See also
★
Combined Arms
★
Bounding Overwatch