The Foreign Legion Veteran Societies Federation (French: Fédération des sociétés des Anciens de la Légion étrangère, FSALE) is an association of the association law type of 1901 (French: Association loi de 1901) federating different representations of veteran Legionnaires (French: Anciens Légionnaires) across the world.

[2] If the associations regrouping veteran Legionnaires (French: Anciens Légionnaires) rapidly saw daylight throughout the course of the history of this institution, it was in 1912 where the ancestor of the FSALE was created.

[2] It was during this occasion, that was decided the creation of a union whose purpose was to federate the different societies and associations of veteran legionnaires.

[2] Since 1945, the veteran members of the USAL regrouped in order to put in place a congressional session which was held in Paris in 1947, and which united 28 societies.

The functioning is governed by a bureau, the latter having a delegation of the administrative council elected during the course of general assembly.