відкритий фланг
advance, flank, and rear guard
assailable flank
flank fire
flank guard
flank security
flank security force
flank security guard
flank-turning manoeuvre
go around the flank
left-flank attack
open flank
deep flank
flank out the enemy of a position
unprotected flank
hit on the flank
flank attack
flank command post
flank spotting
flank extension beyond enveloping force
flank
flank array sonar
advanced flank
withdrawn flank
work out to the flank
work round a flank
march by the flank
seaward flank
far-flank movement
observation from flank
directing flank
marching flank