black-ops unit

Deputy Chief of Staff -Operations (DCOS OPS)

information operations (IO) (Info Ops)

psychological operations (PSYOPS, Psy Ops)

General Purpose Ops Man’s Waistcoat

operations and logistics division (OPS/LOG)

covert ops

night ops

Black Hornet

black obscurant smoke

black powder

black propaganda

black psychological operation

blackout / black out

look-out black spots

Organization of Black Sea Economic Cooperation (BSEC)

black hull

Black supremacy

black box

black product

petroleum black

black box flight data recorder (FDR)

black oxide

flight data recorder (FDR) / ‘black box’

get black

Black Hornet Nano

bаск in black

fly totally black

battery coolant unit / battery-coolant unit (BCU)

gear reduction unit / gear-reduction unit

position and navigation unit / position navigation unit (PNU)

pinch (a unit) out of a large unit

adjacent unit