National System for Geospatial-Intelligence (NSG)

National Geospatial-Intelligence Agency (NGA)

National Geospatial Agency (NGA)

geospatial intelligence (GEOINT)

geospatial

national intelligence

National Maritime Intelligence Center (NMIC)

contender for director of national intelligence

NASAMS (Norwegian / National Advanced Surface to Air Missile System)

Indian National Small Arms System

multi-national space-based imaging system (for surveillance) (MUSIS)

National Airspace System (NAS)

Secret Intelligence Service (SIS) / Military Intelligence, Section 6 (MI6)

tactical intelligence / combat intelligence

undeclared member of the intelligence or counter-intelligence agencies

fire extinguishing system sprinkler system and fire alarm system

communications and intelligence system

NATO Intelligence Warning System (NIWS)

signals intelligence system

reconnaissance electronic warfare, special operations and naval intelligence processing system

total reconnaissance/intelligence system evaluation and comparison technique

air national guard

Allied national authorities

Army National Guard (ARNG)

Assistant to the President for National Security Affairs

Council of National Security and Defense of Ukraine (CNSDU)

Defense National Stockpile

Inactive National Guard (ING)

intra-national terrorism

National Aeronautics and Space Administration (NASA)

national air space

national armed establishment

national boundary