be active under the cover of civil society organisations

civil society

Committee on Challenges of Modern Society (CCMS)

under cover of

be under cover

under cover of civilian research

under cover of the Consulate General

under deep cover

intelligence officer under official cover

intelligence officer working under diplomatic cover

intelligence officer working under legal cover

blow the cover / blow someone's cover

foot march under packs

hand-held under-barrel grenade launcher

restricted area (under military jurisdiction)

surveillance, under surveillance

under armor auxiliary power unit (UAAPU)

under arms

under barrel grenade launcher (UBGL)

under canvas

under command of

under fire

under hatches

Under Secretary of Defense (USD)

Under Secretary of Defense for Acquisition, Technology, and Logistics (USD AT&L)

Under Secretary of Defense for Intelligence USD(I)

under-strength unit

under-vehicle improvised explosive device (UVIED)

nap-of-the-earth (NOE) (ground-hugging / terrain masking / flying under the radar / hedgehopping)

UBACS / Under Body Armour Combat Shirt

under nonnuclear conditions

under nuclear conditions

assume obligations under a treaty