As the frontline battlefields raged at the Battle of Shanghai and Battle of Nanking, pressing demands for aerial support at the Battle of Taiyuan in the northern front and Canton in the southern front, forced the Chinese Air Force to split the 28th PS, 5th PG based at Jurong Airbase in the Nanking defense sector into two smaller squadrons, and then dispatching half of the squadron to the south in Guangdong under the command of Lt. Arthur Chin, and the other half to the north at Taiyuan under the command of Capt. Chan Kee-Wong.