Tokugawa led the 2nd Air Battalion, was Commanding Officer of the 1st Air Regiment, and was General Officer Commanding the Army Aviation Corps three times through the 1920s and 1930s.
Tokugawa memimpin dua Batalyon Udara, menjadi Komandan satu Resimen udara, dan Komandan Angkatan Udara selama tiga kali sejak tahun 1920-an dan 1930-an.