The Victoria Lines, a line of fortification in Malta built to divide the sparsely populated north of the island from the densely populated south
Reconstruction of a Scythian defense line built around 339 BC in modern-day Hungary

A defense line or fortification line is a geographically recognizable line of troops and armament, fortified and set up to protect a high-value location or defend territory.

A defense line may be based on natural difficult terrain features, such as rivers or marshes, mountain ranges, or coastlines; temporary field fortification works such as trenches; and/or more permanent fortifications such as fortresses and bunkers.

List of defense lines

Some notable defense lines include:

Historical[lower-alpha 1]

Modern

Notes

  1. Where given, dates in parentheses indicate when construction began.

References


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