Group Fortifications of Aisne

The Group Fortifications of Aisne extends through multiple underground galleries connecting different sections across a distance of two kilometers in northeastern France.

Built between 1904 and 1910, this fortification complex played a critical role during both World Wars, serving as a defensive stronghold and later as a torpedo factory.

The fort represents a milestone in military engineering, incorporating advanced materials and technologies that influenced subsequent defensive structures including the Maginot Line.

The fort maintains regular visiting hours through the Association pour la Découverte de la Fortification Messine, offering guided tours of its extensive underground network.

Among all fortifications in the Metz defensive ring, this structure stands as the sole facility open to public visits, accommodating up to 1,200 military personnel during wartime.

GPS coordinates: 49.01380,6.19410

Latest update: June 23, 2025 09:58