відбірні війська; (іст.) аристократичні війська
crack defenses/the front
crack shot
crack-through
crack tank unit
crack truck body
corrosion crack
crack detection
fatigue crack
loaded crack
partial-thickness crack
stress corrosion crack
thermal-shock crack
surface crack detector
hairline crack / microcrack
microcrack / hairline crack
crack
crack a line
crack defenses
crack an attack
crack through the shells
crack а сode
airborne troops
armored troops
barrier troops / blocking detachments (units) / anti-retreat forces
border (security) forces /troops
civil defense troops
coastal troops
concentration of troops
covering troops
division troops
engineer troops (engr tps)
extraction of troops