A year later, the creation of the French Special Operations Command (Commandement des Opérations Spéciales, COS) led to a major shake-up of French special forces units to incorporate the lessons learned in the First Gulf War. As part of this process, in 1997, the nucleus of what was to become the army's BFST (Brigade des Forces Spéciales Terre) (Land Special Forces Brigade) was created and the 1er RPIMa became its core unit. All the while, the regiment participated in operations in the Balkans and in Africa; it was specifically involved in stalking war criminals in Bosnia, leading to several successful arrests of individuals indicted for war crimes.