The 5th Overseas Interarmes Regiment (in French 5eme Regiment Interarmes d'Outre Mer (or RIOM)) is a troupes de marine regiment stationed in Djibouti. It has been the Djibouti garrison since 1 November 1969. It is the last combined arms regiment in the French army comprising a mechanised infantry company, a light cavalry squadron, an artillery battery and a command and support company.