space forces

missile and space defense forces

Army (ground forces / land forces)

naval surface forces, surface fleet, surface forces

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 intelligence

National Aeronautics and Space Administration (NASA)

national air space

single defense space

Space Control Center

space defense

space operations (SPACEOPS)

space program

space segment

space situation

space surveillance

space system

space vehicle (SV)

space weapon

trade space for time

US Space Command’s Missile Warning Center

weaponization of space

European Space Agency (ESA)

beaten ground space

adjustable head space feature