Terra nullius

International law term for unclaimed land

Terra nullius is a Latin expression meaning "nobody's land". Since the nineteenth century it has occasionally been used in international law as a principle to justify claims that territory may be acquired by a state's occupation of it. There are currently three territories sometimes claimed to be terra nullius: Bir Tawil, four pockets of land near the Danube due to the Croatia–Serbia border dispute, and parts of Antarctica, principally Marie Byrd Land.

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