Cajemé José Maria Leyba, a prominent leader of that tribe from 1874 to 1887. Three mitrailleuse were used in March, 1886, with two mitrailleuse under the command of the forces of Generals Leiva and Carillo, and one under the command of General Camano. In September of 1926, the Mexican military, at first just under General Miguel Pina, made preparations to use the mitrailleuse against the Yaqui people in Sonora, then led by their military chief Luis Matus (Matius in some later accounts), and his lieutenant, Albin Cochemea. The 1st, 8th, and 18th infantry battalions prepared to bring a more modern state of warfare against the indigenous inhabitants of Vicam and other Yaqui pueblos along the river. By October 5th, after intense fighting, the remaining Yaqui soldiers had retreated to the mountains above the river, and the Mexican forces decided to mount a vast offensive against them. More than 12,000 Mexican Federal troops, under the command of General Obregon, General Abundio-Gomez, and General Manzo, directed the operations against the remaining Yaqui forces, using munitions that included 8mm mitrailleuse, and aeroplanes carrying poison gas. Following their campaign against Arabi Pasha in Egypt during 1882, the British recorded having seized several mitrailleuses. None of these seemed to have been used in combat. Even the Kingdom of Dahomey had some of these guns. Impact on military development The long-term effects of the mitrailleuse's poor performance have been the subject of some dispute among historians. In Machine Guns: An Illustrated History, J. Willbanks argues that the weapon's ineffectiveness in the Franco-Prussian War resulted in long-standing opposition among European armies to adopting machine gun weapons, particularly in Continental Europe. It is true that the French Army did not adopt an automatic machine gun until 1897, when they chose the Hotchkiss machine gun, later to be followed by the Hotchkiss M1914 machine gun. The French armed forces also adopted another automatic machine gun, the St. Étienne Mle 1907. It has been suggested that the relative slowness displayed by the French services to adopt machine guns was the result of wariness occasioned by the failure of the mitrailleuse. There is some evidence for that suggestion, as the Maxim gun had repeatedly been tested by the French armed services ever since its inception. In the immediate aftermath of the war, the French put a much greater emphasis on improving their field artillery. The failure of French artillery during the