Claire Lee Chennault
Under the Sino-Soviet Treaty of 1937, Soviet-made bomber and fighter aircraft increasingly replenished China's battered air force units previously equipped with US-made aircraft, such as the Hawk IIIs and Boeing 281 Peashooters, and were also augmented by Soviet volunteer combat aviators; while the Chinese Air Force Academy in Jianqiao Airbase was pushed hinterland with the Fall of Shanghai and Nanking, Claire Lee Chennault went along to Kunming's Wujiaba Airbase, in the capital of Yunnan Province in southwestern China, to reorganize and train new Chinese Air Force cadets at the Academy along the American army air corps training model.