In 1936 the Japanese decided to use Kangshan as a military base, and built an airport and factory in the township. Youths were drafted into military training and taught airplane assembly and maintenance.
民國 25 年，日本軍閥選定岡山為南侵東南亞的軍事基地之一，除設海軍機場，又建造海軍航空廠，徵集全台各地青年到此受軍事訓練，或至飛機裝配、修護廠工作。