лінія охорони
perimeter camp
perimeter defense (all-around defense)
perimeter formation
perimeter position
perimeter unit
perimeter weapon
bevel half-perimeter
radar range perimeter
night time perimeter assignment
defensive perimeter post (DPP)
perimeter defense
perimeter guard
pull a unit out of the perimeter
pull back into a tighter perimeter
perimeter
maximum missile range perimeter
secure the perimeter
security agreement (information security, NATO)
all-around security
all-embracing system of international security
area security
Area Security Coordination Center (ASCC)
army intelligence and security
Assistant Secretary General for Political Affairs and Security Policy
Assistant to the President for National Security Affairs
battlefield security
border (security) forces /troops
border security
Central Security Service (CSS)
centres for security studies
civilian security experts
collective security