Operational Group of the Foreign Legion (G.O.L.E.; French: Groupement Opérationnel de la Légion Etrangère) stationed in Bonifacio, Corsica. This was redesignated the 2nd Foreign Infantry Regiment (2e R.E.I) in 1980, and garrisoned at Nîmes.
The insignia of the 31st Brigade is a silver rectangle, bordered to the left by green and red stripes, representing the Legion and bordered to the right by red and blue stripes, representing the Troupes de marine. The top right features two stars representing the brigade. At the bottom left features Poseidon armed with a trident, forming out of a silver wave, recalling the intervention capacity capability of the brigade in any lieu, by maritime including aeronaval, aerial, or other maritime means of displacement. The insignia was realized in July 1981, following a contest at the corps units forming the brigade.