Jisho

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Noun or verb acting prenominally
1. heliborne (e.g. operation, assault)
Wikipedia definition
2. Air assaultAir assault is the movement of ground-based military forces by vertical take-off and landing (VTOL) aircraft—such as the helicopter—to seize and hold key terrain which has not been fully secured, and to directly engage enemy forces. In addition to regular infantry training, air-assault units usually receive training in rappelling and air transportation, and their equipment is sometimes designed or field-modified to allow better transportation within aircraft.
Read “Air assault” on English Wikipedia
Read “ヘリボーン” on Japanese Wikipedia
Read “Air assault” on DBpedia

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