Training Command is the Indian Air Force's command responsible for flying and ground training. In the 1930s, the approaching threat and later advent of World War II and the learning of Japan towards the Axis powers, the latter was considered as a potential enemy. Therefore, need was felt to make IAF a self-supporting force for the South Eastern Theatre of war. This led to the rapid expansion of the IAF. A target was fixed of 10 IAF Squadrons. With this expansion, the requirement of pilots and technical personnel increased. For the training of technical personnel, a technical training school was set up at Ambala in 1940.