Definition of Kill box

A Kill Box is a three dimensional fire support control measure (FSCM) used to facilitate expeditious air-to-surface attacks, which may be augmented by or integrated with surface-to-surface indirect fires. In laymen's terms it is a grid superimposed upon a map of the battle area and operations are assigned to particular boxes within that grid. First developed by the U.S. Air Force in the late 1980s, the technique gained notoriety through its use during the first Gulf War (1991). The tactics, techniques and procedures of Kill Box employment were further refined by the U.S. Air Force throughout the 1990s, leading to more efficient prosecution of targets.