Which British Overseas Territory has a land border with Spain?

Gibraltar is the British Overseas Territory that has a land border with Spain.

The border runs across Gibraltar’s northern isthmus, separating the territory from the Spanish municipality of La Línea de la Concepción. It is about 1.2 kilometres long and is often called the Gibraltar–Spain border or the Fence of Gibraltar.

Gibraltar was captured by an Anglo-Dutch force in 1704 during the War of the Spanish Succession and formally ceded to Great Britain under the 1713 Treaty of Utrecht. Spain continues to claim sovereignty over Gibraltar, but the territory remains under British administration.

A common mix-up is to confuse Gibraltar’s land boundary with its maritime disputes. Gibraltar sits beside the Strait of Gibraltar, but the quiz asks for a territory with a land border. The frontier was closed by Spain in 1969 and fully reopened to vehicles in 1985.