аерофотознімання переднього краю
cylinder front cover
front-sight cover
deployment line; line of deployment (LD); line of departure
forward front-line deployment
front line
front line logistic support
front-line radar
front-line trench
in the front line
hold the front line
observer-target line (OT line)
scheme trail line (tag line)
air box handhole cover
air cover
base cover
communications cover
construct cover
cover from view
cover plan
cover story
cover target
cover the retreat / withdrawal
crankcase handhole cover
deep-cover agent
operational cover
overhead cover(ing) / protection
protective cover
tactical cover and deception estimate
under cover of
body armour cover
DPM helmet cover
helmet cover