кругова оборона
perimeter defense (all-around defense)
perimeter camp
perimeter formation
perimeter position
perimeter unit
perimeter weapon
bevel half-perimeter
radar range perimeter
night time perimeter assignment
security perimeter
defensive perimeter post (DPP)
perimeter guard
pull a unit out of the perimeter
pull back into a tighter perimeter
perimeter
beach defense mine / beach-defense mine
active layered theatre (ballistic) missile defense (ALTBMD)
aerospace defense command
air defense (AD)
Air defense and Airspace Management Directorate (NATO)
air defense area
air defense artillery (ADA)
air defense artillery battalion
air defense artillery system
air defense brigade
air defense command
air defense commander (ADC)
air defense control center
air defense early warning
air defense emergency
air defense fire unit
air defense forces