A formal training establishment was also created by the Air Service on February 25, 1920, when the War Department authorized the establishment of service schools. Flying training, originally at Carlstrom Field in Florida and March Field in California, moved to Texas, divided between the 11th School Group (primary flying training) at Brooks Field and the 10th School Group (advanced flying training) at Kelly Field. A technical school for mechanics was located at Chanute Field, Illinois. The Air Service Tactical School was set up at Langley Field, Virginia, to train officers for higher command and to instruct in doctrine and the employment of military aviation. The Engineering Division created an air engineering school at McCook Field and moved it to Wright Field when that base was established in 1924.