агентурна розвідка
Secret Intelligence Service (SIS) / Military Intelligence, Section 6 (MI6)
foreign secret agent
be drawn from secret intelligence
agent / agent network / agents
CW agent (chemical warfare agent)
obscurant agent (vision-restricting agent)
damage agent / damaging agent
secret (security classification)
secret
secret internet protocol router network (SIPRNET)
secret service
top secret (security classification)
top secret
state secret
be marked top secret
give away the secret by careless talk
clear secret
clearance for top secret work
agent inside the intelligence service
agent with intelligence service
counter-intelligence agent
tactical intelligence / combat intelligence
undeclared member of the intelligence or counter-intelligence agencies
agent vapor
anti-plant agent
automatic chemical agent alarm
biological agent
blister agent/ gas
blood agent
casualty agent
chemical agent detector
chemical agent detector kit