рубіж / смуга бойової охорони
combat outpost line
deployment line; line of deployment (LD); line of departure
battle outpost
combat outpost
general outpost
outpost
outpost area
outpost defenses
outpost engagement
outpost troops
put out an outpost
observer-target line (OT line)
armistice demarcation line
back line defense
beyond line-of-sight (BLOS)
bulk distribution line
cease-fire line (CFL)
confrontation line
contact line
contamination control line
contour line (contour)
control line
county line
crack a line
defensive belt / line
delivery line (pipeline)
demarcation line
dismount line
distant early warning line
drive line / drive (propeller) shaft
final coordination line
final protective line (FPL)