clandestine border crossing

border crossing arrangement

border crossing point (BCP) / station

level-crossing = (амер.) grade crossing

clandestine

clandestine operation; covert operation

clandestine operation

clandestine organization

experience with clandestine work

keeper of a clandestine address

give clandestine assistance

clandestine agencies

clandestine agent

clandestine assembly area

clandestine force

clandestine operations

clandestine passive resistance

clandestine patrol base

clandestine reconnaissance

clandestine warfare

border (security) forces /troops

border

border break (cart.)

border command

border control

border disputes

border management

border monitoring

border security

state border

trans-border cooperation

trans-border threat

US Border Patrol