space reconnaissance operation

reconnaissance space vehicle

counter reconnaissance / counter-reconnaissance

clandestine operation; covert operation

humanitarian operation; humanitarian relief operation (HUMRO)

PZ operation (pick-up zone operation)

noncombatant evacuation operation (NEO); non-combat evacuation operation

air and space doctrine (section of military doctrine)

air/space defense missile

Allied Joint Doctrine for Air and Space Operations (AJP-3.3)

battle space

cargo space

dead space

double bottom space

machinery space

military space research

missile and space defense forces

missile and space intelligence

National Aeronautics and Space Administration (NASA)

national air space

single defense space

Space Control Center

space defense

space forces

space operations (SPACEOPS)

space program

space segment

space situation

space surveillance

space system

space vehicle (SV)

space weapon

trade space for time