What is BOUNDARIES?
BOUNDARIES meaning in Military terminology / glossary / dictionary is:
The battalion and company defense areas that are limited because of terrain features and avenues of approach.
Company boundaries immediately forward of the FEBA assign responsibility for an avenue of approach to a company, preferably the company most threatened by the avenue. Boundaries between companies extend forward of the FEBA, but stop short of the combat outpost line (COPL). They extend to the rear far enough to provide sufficient area for the companies to organize their defense in depth.
Establishing rear boundaries may become necessary during fluid operations when infilltration and guerrilla activities are possible. Rear boundaries help the company coordinate and control its maneuvers and fires.