noun
corridor; land corridor
Geopolitical term for a narrow strip of land connecting two larger areas, often providing access or separating regions.
ポーランド回廊地帯は、第一次世界大戦後に設けられた。
The Polish Corridor was established after World War I.
回廊 means 'corridor' or 'gallery' in a general architectural sense, while 回廊地帯 specifically refers to a geopolitical land corridor.
Compound of 回廊 (corridor) and 地帯 (zone, belt), literally 'corridor zone'. The term is a calque from English 'corridor' in its geopolitical sense.