1. Hayao Tada was a general in the Imperial Japanese Army in the Second Sino-Japanese War.

1. Hayao Tada was a general in the Imperial Japanese Army in the Second Sino-Japanese War.
Hayao Tada graduated from the 25th class of the Army War College in 1913.
Hayao Tada served as an instructor to the Chinese National Revolutionary Army at the Beijing Military Academy from 1917 and rose to the position of senior military advisor to Chinese President Li Yuanhong.
Hayao Tada became fluent in Mandarin Chinese and developed close personal contacts with many leading Chinese military and political figures of the time.
Hayao Tada departed China on assignment to Vladivostok as part of the Siberian Expeditionary Army.
Hayao Tada returned to China from March 1926 to July 1927.
Hayao Tada returned to the Beijing Military Academy from March 1931, and was assigned to the Kwantung Army from April 1932, serving a senior military advisor to Manchukuo.
Hayao Tada was instrumental in establishing the East Hebei Autonomous Government later that year.
Hayao Tada was promoted to lieutenant general in April 1936 and assumed command of the IJA 11th Division in May 1936.
Hayao Tada concurrently held the post of Commandant of the Army Staff College.
Hayao Tada returned to China in December 1938 as commander of the IJA Third Army and in September 1939, he was promoted to commander of the North China Area Army.
Hayao Tada was awarded the German Grand Cross of Order of the German Eagle in January 1940, and the Japanese Order of the Golden Kite, 2nd class in July 1941, and was promoted to full general.
Hayao Tada retired from active military service two months later and moved to Tateyama, Chiba for the remainder of the war.
Hayao Tada was charged with "Class A" war crimes, and was called as a witness for the prosecution against Iwane Matsui, Seishiro Itagaki, and Kenji Dohihara.
Hayao Tada died of his stomach cancer at his home in Tateyama on 18 December 1948, before the end of the trial.