 However, the French success at Grand Port was only a temporary setback to British plans to conquer Mauritius and Réunion, and Governor Comte Decaen finally signed a capitulation in December.Roussin was repatriated to France where he met the Emperor, who confirmed his promotion to Captain and presented him with the légion d'honneur.Roussin was posted to command the frigate "Gloire" fitting out at Le Havre.