Katayama Detachment

The Katayama Detachment from the IJA 2nd Division fought small actions near Akiyama heights, or Heights 997 on 6th-10th of September 1939. 2nd Division (and the 4th Division) was attached to Japanese Sixth Army in the Battle of Khalkhin Gol as reinforcement for a projected counterattack that was canceled when a cease fire was signed.

Katayama Detachment
 * 15th Infantry Brigade
 * 16th Infantry Regiment
 * 30th Infantry Regiment
 * 1 Field Artillery battalion

Source

 * Coox, Alvin D., Nomonhan, Japan Against Russia, 1939. Stanford University Press, Stanford, CA: 1985.