The 1st Cavalry Brigade of the Imperial Japanese Army originally formed November 3, 1901.
It was assigned to Kwantung Army in April 1933 as part of the IJA Cavalry Group. It was then assigned with the Cavalry Group to Northern China Area Army, June 1938. Again with the Group it was assigned to Mongolia Garrison Army on February 1939.
1st Cavalry Brigade (Imperial Japanese Army) Wikipedia
1st Cavalry Brigade13th Cavalry Regiment
14th Cavalry Regiment
Brigade Mounted Artillery Regiment
Later additionsBrigade Machinegun unit
Brigade Anti tank artillery squadron
Brigade Tank unit
Independent Infantry Battalion (motorized)
Independent Engineer Squadron (motorized)
1st Mounted Artillery Regiment
71st Cavalry Regiment