A large training establishment was also set up. In France the Air Service Concentration Barracks at Saint-Maixent received all newly arrived Air Service troops, distributing them to 26 training fields and schools throughout the central and western regions of the country. Flying training schools, equipped with 2,948 airplanes, supplied 1,674 fully trained pilots and 851 observers to the Air Service, with 1,402 pilots and 769 observers serving at the front. The observers trained in France included 825 artillery officers from the infantry divisions who volunteered to fill a critical shortage in 1918. After the Armistice, the schools graduated 675 additional pilots and 357 observers to serve with the Third Army Air Service in the Army of Occupation. The 3rd Aviation Instruction Center at Issoudun provided 766 pursuit pilots. 169 students and 49 instructors died in training accidents. Balloon candidates made 4,224 practice ascensions while training.