Ouvrage Chesnois

Ouvrage Chesnois is a military fortification in the Montmédy region and consists of six combat blocks connected by underground passages. The installation was equipped with various weapon systems and was designed to protect an area against attacks from outside.

The installation was built in the 1930s as part of French border defense against Germany. It saw brief action during the 1940 campaign before being abandoned.

This fortification shows French military engineering from the period between the two world wars and was part of a broad defense line along the border. Visitors can see today how engineers equipped underground spaces for soldiers.

The complex is partially accessible and allows visitors to walk through several levels and rooms. Expect narrow passages and cool temperatures throughout.

A remarkable feature is the metal airlock at the entrance, a rare piece of engineering that exists nowhere else along the entire defense line. This system shows how military engineers developed solutions for complex security challenges.

Part of: Fortified Sector of Montmédy

GPS coordinates: 49.57694,5.33333

Latest update: December 14, 2025 11:40