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A principle in international law where international boundaries are extended over sea areas in the Arctic towards the North Pole following meridians (lines of longitude). The same principle is used over land in the Antarctic to the South Pole.

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sector principle

Several Arctic states invoke the sector principle to claim maritime areas extending toward the North Pole along lines of longitude.

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Several Arctic states invoke the sector principle to claim maritime areas extending toward the North Pole along lines of longitude.

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