The Romulan Neutral Zone was a buffer created following the end of the Earth-Romulan War between the United Federation of Planets and the Romulan Star Empire. Any entry into the Zone would be considered an act of war by either side. (TOS: "Balance of Terror")

The Romulans referred to the buffer as the Outmarches. (TOS novel: My Enemy, My Ally, ENT novel: The Romulan War: To Brave the Storm)

In the 22nd and 23rd centuries, the Zone was monitored by Earth Outpost Stations on the Federation side. ("Balance of Terror")

RIS BouteinaEdit

In 2354, the USS Raven has crossed the Neutral Zone in order to chase a Borg cube. However, its crossing of the Neutral Zone was never interpreted as an act of war because the ship was unarmed and they had nothing to do with Romulans. (RIS Bouteina: "Night of the Were-Hawks")

Star Trek: ArcadiaEdit

The Neutral Zone was finally abolished in 2382, with the rise of the Romulan Republic and signing of peace accords with the Federation.

The Neutral Zone contained several star systems and planets, both inhabited and uninhabited. One system was the location of the planet Horuulk. (Star Trek: Arcadia)

Star Trek: AvengerEdit

Commander Fillmore of the USS Avenger was transported by a time-travel-related accident to Veshkam III, a class-L planet in the Romulan Neutral Zone, in the 2nd century A.C.E. (Star Trek: Avenger: "Time Waits for No Man")

Star Trek: The Cantabrian ExpeditionsEdit

In 2384, undercover Starfleet Special Ops operative Scott Fack stole a Romulan shuttle from Unroth III to bring Corey Aster back to the Federation. Three Romulan warbirds crossed the Neutral Zone behind the shuttle in an attempt to stop him, but the threat of combined Starfleet and Klingon forces drove the Romulans to retreat back to the Neutral Zone before an escalation of hostilities took place. (Star Trek: The Cantabrian Expeditions: "Dream a Little Dream of Me")

External linksEdit

• Romulan Neutral Zone article at Memory Alpha, the canon Star Trek wiki.
• Romulan Neutral Zone article at Memory Beta, the non-canon Star Trek wiki.