потайна висадка морського десанту
clandestine operation; covert operation
covert
covert action
covert activities
covert attack
covert delivery
covert forces
covert intelligence
covert operation
covert propaganda
covert warfare
covert way
carry out covert action
covert activity
covert influence operation
covert intelligence officer identities
covert intelligence work
covert ops
information from covert sources
entry on active duty
entry-exit checkpoint (EECP)
force entry
initial-entry force
initial-entry training (IET)
journal entry
multiple re-entry vehicle system
point of entry / exit
re-entry guidance equipment
re-entry vehicle (RV)
safe entry time
swift entry into hostile territory
late entry officer