прикордонний патрульний корабель, що занурюється
sentry go / sentry-go
offshore bombardment
offshore operation / surveillance
offshore patrol
offshore
antimine submersible vehicle
submersible
deep-diving submersible
single-missile submersible
towed unmanned submersible
gate sentry
group sentry post
pick off a sentry
sentinel / sentry
air sentry
zone of sentry guard
electronic sentry
carry off a sentry
jump a sentry
sentry
sentry box
sentry detachment
border (security) forces /troops
border
border break (cart.)
border command
border control
border crossing arrangement
border crossing point (BCP) / station
border disputes
border management
border monitoring