прикордонні війська
border security
barrier troops / blocking detachments (units) / anti-retreat forces
ground forces air defense troops
security troops
border
border break (cart.)
border command
border control
border crossing arrangement
border crossing point (BCP) / station
border disputes
border management
border monitoring
state border
trans-border cooperation
trans-border threat
US Border Patrol
violation of the state border
border and offshore submersible sentry
cetane number in border line
clandestine border crossing
border flight clearance
cross-border incursion
cross-border raid
border patrol drone
Army (ground forces / land forces)
naval surface forces, surface fleet, surface forces
combat security forces
security forces
survivability and security of theater nuclear forces
security against mechanized forces
security agreement (information security, NATO)