Imperial Japanese general defeated at Khalkhin Gol
On August 22, 1939, as his division collapsed under Zhukov's assault, Komatsubara wrote in his diary: "Even when we made point-blank attacks with cider bottles, they were ineffective, and our troops were left in despair."
Michitarō Komatsubara was an Imperial Japanese Army officer whose Russian expertise shaped a career in intelligence, staff work, and command. At Khalkhin Gol in 1939 he led the 23rd Division as Japan’s border conflict became a major campaign, but Zhukov’s encircling offensive left the division effectively destroyed. The defeat ended his active career, and he died later in 1940 after retiring from the army.
Activities and affiliations
Career Timeline
- 1905Graduated from Army Academy
- 1909–1910Assistant military attaché in Russia
- 1919–1929Soviet intelligence officer, then military attaché in Moscow
- 1932–1934Chief of the Harbin Special Agency in Manchukuo
- 1934–1937Commander of the 8th Infantry Brigade and 1st Imperial Guards Brigade
- 1937–1939Lieutenant general and commander of the Kwantung Army’s 23rd Division
- 1939–1940Kwantung Army staff officer, then retired after Khalkhin Gol
Related historical events
May 1939: The destruction of the Azuma Detachment
Komatsubara was appointed commander of the 23rd Division in July 1938 and stationed at Hailar. As border clashes intensified, the Kwantung Army assigned this newly raised division the defence of a vast stretch of the northern and northwestern Manchukuo frontier, running from the Soviet-Manchukuo border on the Argun River across the whole Mongolia-Manchukuo frontier line; compared with a regular division it was built around recalled reservists and older soldiers and equipped with obsolete weapons. Chief of staff Colonel Ōuchi Tsutomu, himself a Russian specialist like Komatsubara, is said to have hoped no war would break out under this particular divisional commander.
Around 11 May 1939 Mongolian cavalry crossed east of the Khalkhin Gol and small clashes began. On 13 May Komatsubara telegraphed the Kwantung Army that roughly 700 Outer Mongolian troops had crossed illegally and were fighting Manchu forces, and that he intended to destroy them with part of his division and the Hailar Manchu troops; the Kwantung Army dispatched aviation and motor transport units. At that point the Kwantung Army's policy was to hold the line Japan and Manchukuo claimed without widening the conflict, and chief of staff Ōuchi likewise ordered restraint. Komatsubara nevertheless forced the sortie through while his chief of staff was absent, and wrote in his diary that he would not be constrained by the telegrams from the Kwantung Army and Ōuchi. Interrogation of prisoners had led him to underestimate Soviet strength at about 500 troops, five tanks and twelve anti-tank guns.
On 28 May the divisional reconnaissance unit under Lieutenant Colonel Azuma Yōzō, which had slipped forward across the river, was detected; Soviet and Mongolian forces encircled it and pressed it with flame-throwing armoured vehicles and heavy artillery. The surrounded unit called for support, but the main body under Colonel Yamagata Takemitsu, only three kilometres away, could not send reinforcements. On 29 May Azuma led his twenty remaining men in a charge and was killed, and the reconnaissance unit was effectively annihilated.
This defeat foreshadowed the shape of the whole campaign. Komatsubara continued to underestimate Soviet strength, and his division had no means of matching Soviet armour and artillery superiority. The destruction of the 23rd Division by the Soviet encircling offensive that August had already begun in this May fighting.