Defense Clandestine Service (DCS)

direct commercial sales (DCS)

clandestine

clandestine operation; covert operation

clandestine border crossing

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

clandestine premises

keeper of clandestine premises

perimeter defense (all-around defense)

beach defense mine / beach-defense mine

Defense Security Service (DSS)

US Army Trial Defense Service

Defense Audit Service

secret defense service

branch (military/service branch, armed service)

separate from active service / the service

Y service (Y-service) / Y-station

regional meteorological service/ regional weather service (RWS)

emergency service / emergency operations service

active layered theatre (ballistic) missile defense (ALTBMD)