 Shortly after Bretonnet's departure, news arrived that Rabih was attacking Baguirmi to punish it for its alliance with France; as a result, Bretonnet was ordered to reach the high course of the Ubangi River, and there unite with the Baguirmians and wait for instructions and reinforcements.Passing first by the Congo River and then by the lands controlled by Mohammed al-Senoussi, Bretonnet reached on June 15 the French post of Kouno and met with the king of Baguirmi Gaourang.He wrote on July 8, 1899, a letter to Emile Gentil, that headed another expedition proceeding shortly behind, in which he wrote that he did not trust the rumours that Rabih in person was marching on Kouno, but all the same asked Gentil to send him Captain Julien with his 130-strong company.