In 2008, the citadel and the city walls of Mont-Louis were listed as part of theFortifications of Vauban UNESCO World Heritage Site, because of its outstanding engineering and testimony to the development of military architecture in the 17th through 19th centuries.[6]
The citadel has been hosting for more than half a century theNational Commando Training Center (French Army) which trains elite French troops and some foreign ones[example needed] in the usage ofcommando techniques and for enduring heavy physical and mental stress in combat situations. Nevertheless, some places of the citadel, like the "Puits de Forçats",[7] can also be visited, being accompanied by a local guide.
^"Fortifications of Vauban".UNESCO World Heritage Centre. United Nations Educational, Scientific, and Cultural Organization. Retrieved14 November 2021.