Neutral Zone

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neutral zone

[′nü·trəl ‚zōn]

Neutral Zone


in international law, a definite geographic region in which preparation for military action is prohibited and which cannot be used as a military theater. As a rule, border and/or disputed land and maritime areas are declared neutral zones. The state involved may form a neutral zone on a unilateral basis or by international agreement. (For example, the territory between Iraq and Saudi Arabia was declared a neutral zone according to the Treaty of Baghdad of 1938.)

A neutral zone can be formed temporarily by a coastal state for security reasons during a war between other states (such neutral zones have been established, for example, by legislation in Belgium, Brazil, the Netherlands, and Japan), or it can be permanent (for example, neutralization of the Strait of Magellan according to a treaty between Chile and Argentina in 1881 and neutralization of the Panama Canal according to a treaty between the USA and Panama in 1903). Temporary neutral zones also include zones established by the combatants for carrying on negotiations (for example, to exchange prisoners of war, wounded, and sick or to negotiate a truce) and for the protection of cultural and historical sites. When a neutral zone is created, it is often demilitarized.

References in periodicals archive ?
Key Words: Edentulous Denture Neutral zone Phonetics Muscles.
Neutral zone outlines the zone of minimal conflict where the forces of tongue and cheek musculature can be neutralized during static and dynamic conditions.
It has been concluded that period of edentulism may affect the buccolingual position of neutral zone.
There were greater numbers of subjects showing the buccal deviation of phonetic neutral zone in this particular area on both sides.
Lingual deviation of phonetic neutral zone in non denture wearers on mandibular anterior buccal surfaces may have resulted because of stronger contraction of inferior orbicularis oris to produce bilabial sounds.
In premolar segment correlation of the denture wearing with morphologies of neutral zone was not significant on either buucal or lingual sides.
An electromyographic study14 of orbicularis oris and buccinators also shows comparable activity of these muscles during rest pursing speaking and laughing with or without neutral zone dentures.
In conclusion the influence of previous denture on the comparative shapes of phonetic and swallowing neutral zone may not be prominent.
Morphologic comparisom of two neutral zone impression techniwques: a pilot study.