What is a “call for fire”?

A “call for fire” is essentially a request from a unit that requires artillery support to engage a specific target. This process involves the requesting unit providing critical information such as target location, the type of mission, and any desired effects. The purpose of this call is to coordinate and direct artillery fire effectively, ensuring that it supports ground operations or provides necessary firepower in combat scenarios.

In the context of military operations, timely and precise communication is vital for successful engagements. A call for fire ensures that artillery units understand exactly what is needed and can respond accurately. By using this procedure, units can maximize their effectiveness while minimizing the risk to friendly forces and civilians in the area.

The other choices do not accurately represent the function of a "call for fire." A signal to retreat does not align with the intent of calling for artillery assistance, nor does it provide any tactical advantage in engagement. A warning to enemy forces suggests a different purpose entirely, typically related to psychological operations rather than direct fire support. Similarly, while a directive to change firing coordinates could be part of the communication process, it is not the fundamental definition of what a call for fire constitutes.