under deep cover

deep-cover agent

deep cover agent

deep cover of indefinite durability

deep-cover

deep-cover operation

under cover of

be active under the cover of civil society organisations

be under cover

under cover of civilian research

under cover of the Consulate General

intelligence officer under official cover

intelligence officer working under diplomatic cover

intelligence officer working under legal cover

air interdiction (AI), deep air support (DAS)

deep battle

deep fires

deep objective

deep penetration

deep snow operations

deep supporting fire

deep target

deep wading (fording)

deep water

deep-water fording kits

in deep rear

very deep draught ship

deep airborne envelopment

deep area

deep articulation

deep defilade

deep echelonment

deep exploitation