Closed since 12 March 2012, the Museum has been the object of extension works since January 2011 aiming to double the surface by the construction of a new wing of 1000 meter squared.

The back of the Museum, giving on the arms place (French: Place d'armes) of the 1st Foreign Regiment 1er RE, opens on the Monument morts de la Legion, grand sculpture Pourquet (French: Pourquet), representing a world map guarded by four legionnaires and inaugurated in 1931 during the centennial commemoration of the Legion at Sidi bel-Abbès.

The museum regroups 120 mannequin, illustrating the evolutions of the uniforms since the creation of the Foreign Legion in 1831 until the modern presently époque.

Unique Museum in the world, set-up required numerous years of work on behalf of a passionate individual to refit and place all the pieces of equipment.

Strong with more than 4500 books and 10 000 iconic pieces, the center of documentation has for vocation to ground and treat all the media inventory of the Institution.