Neutral zone
In the fictional Star Trek universe, a neutral zone is a sort of "buffer zone" between the territories of two different powers. If either party enters a neutral zone it is an aggressive move and is usually considered an act of war. The Federation has had two neutral zones: one with the Klingon Empire and one with the Romulan Star Empire. Used on its own, "the Neutral Zone" generally refers to the Romulan Neutral Zone.
The zone was the site of the Kobayashi Maru scenario. The Organians are non-corporeal beings from the planet Organia IV, which is strategically situated between the Empire and the Federation. When both parties, thinking them a pre-industrial people, attempted to occupy their world, they revealed their posthuman nature and imposed the Neutral Zone.
The Klingon Neutral Zone was abolished by the Khitomer Accords in 2293.
The Neutral Zone remained uncrossed during a period of extended Romulan isolationism. In 2364, several Romulan outposts along the Neutral Zone were destroyed by then-unknown forces, prompting the Romulans to cross the Neutral Zone to investigate the matter. It was determined a great deal later that the destruction had been caused by the Borg. The following year, the U.S.S. Yamato crossed into the Neutral Zone to prevent the Romulans from finding an ancient legendary planet. In 2366 a Romulan defected to the Federation, breeching the Neutral Zone, warning of a secret plan to attack the Federation; the Enterprise, in turn, crossed the Neutral Zone to investigate the claim. Finally, in the same year, the Romulan ship Pi crashed just inside of Federation space, and a Romulan ship crossed over to investigate.
The last episode of the first season of was called The Neutral Zone.
"Neutral zone" can also refer to a non-fictional political zone similar to those above, as the one between Saudi Arabia and Kuwait. This particular neutral zone is hotly debated because the region is rich in petroleum.
''Neutral zone is also a term in American football and ice hockey.Klingon Neutral Zone
The Klingon Neutral Zone, sometimes known as the Organian Neutral Zone, appears to have been set up during the time of the . Unlike the Romulan Neutral Zone, the Klingon Neutral Zone appears to have some commercial traffic crossing it.Romulan Neutral Zone
The Romulan Neutral Zone is still in effect. It was established in 2160. Like the Klingon Neutral Zone, any entry by either party was considered an act of war. It was unviolated until 2266, when the Romulans crossed it; a war, however, was avoided. The original Enterprise crossed the Neutral Zone twice, once to get to a Starbase quickly when the crew was suffering accelerated aging, and again to steal a Romulan cloaking device.