Ouvrage Boussois, Military fortification in Boussois, France.
Ouvrage Boussois is a military fortification in Boussois, northern France, with three infantry blocks connected by underground galleries. Inside are spaces for barracks, ammunition storage, and operational facilities needed to run the installation.
The fortification was built in the 1930s as part of modern French defensive planning. German forces captured it during both World Wars, first in 1914 and again in 1940.
The structure shows French military engineering from the 1930s and connects elements from the earlier Séré de Rivières fortification system. This link reveals how French defensive building traditions developed over several decades.
Access to the site requires preparation since it contains underground areas with limited light. Visitors should wear comfortable shoes and be ready for uneven surfaces and narrow passages.
The original fort suffered an accident in 1914 when a shell struck its powder magazine, causing many deaths. This incident led to improved safety measures in later fortifications.
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