відставати
man behind the man behind the gun
fall of shot calibration (fall-of-shot calibration)
cut behind the enemy
reconnaissance behind enemy lines
stay-behind (operations)
stay-behind ambush
stay-behind force
go behind enemy lines
moving force behind
falling behind
wake of boundary layer behind an aerofoil
cut behind defenses
get behind enemy lines
crouch behind cover
stealth sneaking behind enemy lines
angle of fall
fall of the hammer
free fall
free fall air drop
free-fall bomb
line of fall
fall of shot to side of target
fall-out area
spring and fall grade gasoline
fall off
fall back to a new line
defenses fall apart
fall before the enemy
fall for formation
fall in
fall in action
fall into column