Munition is often defined as a synonym for ammunition.
A narrower definition would include bombs, missiles, warheads, and mines (landmines, naval mines, and

claymore mines) — what munitions factories manufacture. These munitions are used on battlefields and war zones with lethal intent; unexploded ones may pose a hazard to civilians for years afterwards.

The Joint Direct Attack Munition (JDAM) contains no explosives itself; it adds guidance capability to an attached gravity bomb, making it into a so-called smart bomb.
The Special Atomic Demolition Munition (SADM) was a man-portable nuclear weapon.

Encryption software may also be considered a munition. Until 1996, U.S. Government International Traffic in Arms Regulations prohibited the export of anything stronger than 40-bit encryption.

The U.S. Department of State Directorate of Defense Trade Controls has published the United States Munitions List with 21 categories of munitions:

  1. Firearms, Close Assault Weapons and Combat Shotguns
  2. Guns and Armament
  3. Ammunition/Ordnance
  4. Launch Vehicles, Guided Missiles, Ballistic Missiles, Rockets, Torpedoes, Bombs, and Mines
  5. Explosives and Energetic Materials, Propellants, Incendiary Agents, and their Constituents
  6. Vessels of War and Special Naval Equipment
  7. Tanks and Military Vehicles
  8. Aircraft and Associated Equipment
  9. Military Training Equipment
  10. Military Electronics
  11. Protective Personnel Equipment
  12. Fire Control, Range Finder, Optical and Guidance and Control Equipment
  13. Auxiliary Military Equipment
  14. Toxicological Agents, Including Chemical Agents, Biological Agents, and Associated Equipment
  15. Spacecraft Systems and Associated Equipment
  16. Nuclear Weapons, Design and Testing Related Items
  17. Classified Articles, Technical Data and Defense Services Not Otherwise Enumerated
  18. Directed Energy Weapons
  19. [Reserved]
  20. Submersible Vessels, Oceanographic and Associated Equipment
  21. Miscellaneous Articles
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