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Re-dan′.


Fortification.) A work having two faces forming a salient angle in the direction from which an attack may be expected; it is open at the gorge.

Redans.

A double redan (b), or bonnet depretre, has a reentering angle for mutual defense.

The redan is the simplest field-work, and is used for defending the avenues of approach to a village, bridge, or defile.

In front of another field-work, it is called a fleche.

When flanks are added to the faces, the work becomes a detached bastion or lunette.

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