A big battle was fought at More, where 1,500 rebels gathered: Bretonnet and Kisan Dogo were victorious, but the Lieutenant lost one of his Europeans in the battle, the Resident of Illo, Carrerot. It was only by 1898 that the French had completely subdued the rebellion. News of Bretonnet's occupation of Bussa created uproar in London, when the British learned of the situation in April. The French and English governments, after long discussions, reached a compromise that was sanctioned on June 14, 1898 by the Anglo-French Convention; Bretonnet evacuated Bussa, Illo and Gomba, but for purely commercial purposes Great Britain agreed to lease to France two small plots of land on the river - the one on the right bank between Leaba and the mouth of the Moshi River, the other at one of the mouths of the Niger. By accepting this line Great Britain abandoned Nikki and a great part of Borgu as well as some part of Gando to France. In the same year Bretonnet's former roommate at the naval academy, Captain Émile Gentil, who had just returned from his mission to Lake Chad, persuaded the government to give him command of an expedition that would provide to solve the issues that Gentil's departure had left open, and prepare the ground for Gentil's future mission. On October 10 Bretonnet left France, with his second Lt. Solomon Braun; news arrived shortly after that Rabih az-Zubayr, the greatest ruler in the Chad Basin, had attacked Baguirmi, whose king was a French "protégé". In France, the government reacted by ordering reinforcements to be sent to Bretonnet, and the preparations for the Gentil Mission were accelerated. Bretonnet was advised to reach the Chari River and unite his forces with those of the Baguirmians. On June 15 Bretonnet reached the French post of Kouno on the Chari, having with him only half a hundred Senegal riflemen and two officers, but also three cannons, and was shortly after met by Gaourang, the king of Baguirmi, with 400 men. Bretonnet wrote a letter, on July 8, to Gentil, whose expedition had arrived in Middle Congo and was not very distant, 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.