- For the version of this location before the Super Genesis Wave, see Guardian Units of the Nation Headquarters (Pre-Super Genesis Wave).
The Guardian Units of the Nation Headquarters, or G.U.N. HQ for short, is a location that appears in the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics. It is the main base of operations for the Guardian Units of the Nation. It is equipped with all the necessities needed for a military organization.
- Briefing Room: A moderately large room with many chairs for seating arrangements and a projector, making the room's appearance similar to that of inside a cinema. This room is used to brief agents on their next mission with pictures to help identify their targets.
- Interrogation Room: A room with an observation window that allows occupants of the next room to look into it. Used for interrogations such as those conducted by the C.L.I.P. Division.
- In the game Sonic Chronicles: The Dark Brotherhood, GUN headquarters was revealed to be in the game universe's capital city of the United Federation, Central City.