The citadel of Lille is a military structure built in the 17th century for the defense of Lille and as part of the square meadow. Referred to by Vauban himself as the “queen of citadels”, the military structure is remarkable for its dimensions, the quality of its architecture and its current state of conservation.
The NATO Lille Rapid Reaction Corps is installed at the Citadel Vauban in Lille. In the event of a conflict or a preventive attitude, the CRR-Fr of Lille would command the land component of NATO, which could be up to 40,000 men.
The visit is reserved for nationals of NATO countries.