15th Division (Imperial Japanese Army)

15th Division (Imperial Japanese Army)
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Unit name	15th Division
Dates	1905–1945
Country	Empire of Japan
Allegiance	Emperor of Japan
Branch	Imperial Japanese Army
Type	Infantry
Garrison	Toyohashi
Battles	Second Sino-Japanese War, Pacific War
Notable commanders	Jun Ushiroku

15th Division (Imperial Japanese Army). The 15th Division was an infantry division of the Imperial Japanese Army. Its tsūshōgō (military code name) was the Festival Division. Initially formed in 1905, it saw extensive service during the Second Sino-Japanese War and the Pacific War, including the brutal Battle of Imphal and the final defense of Luzon.

History

The 15th Division was originally formed in 1905 in Toyohashi as part of the post-Russo-Japanese War military expansion. It was initially assigned to the Central District Army as a garrison force. The division was mobilized for the Siberian Intervention in 1918, operating in the Russian Far East. In 1937, following the Marco Polo Bridge Incident, it was deployed to China as part of the North China Area Army, participating in operations in Shanxi province and the Battle of Xuzhou. The division was recalled to Japan in 1940 for reorganization and retraining before being reassigned to the Southern Expeditionary Army Group for the impending Pacific War.

Organization

The 15th Division was organized as a standard triangular division. Its core infantry regiments were the 51st, 60th, and 67th Infantry Regiments, all recruited from the Nagoya region. The division's artillery component was the 21st Field Artillery Regiment. Other supporting units included the 15th Engineer Regiment, the 15th Transport Regiment, and a reconnaissance regiment. This structure was typical of the 1938–1945 divisional organization.

Commanding officers

The division was led by a succession of officers who later held significant commands. Its first commander was Lieutenant General Katsusaburo Shiba. During the critical period of the Pacific War, it was commanded by Lieutenant General Masafumi Yamauchi, who led it during the Battle of Imphal. He was succeeded by Lieutenant General Ryōichi Shibata during the fighting on Luzon. Other notable commanders included Lieutenant General Jun Ushiroku, who later commanded the Third Army, and Lieutenant General Heisuke Abe.

Actions and campaigns

Deployed to China in 1937, the division fought in the Battle of Taiyuan and the Battle of Xuzhou. In 1944, as part of the Fifteenth Army under Renya Mutaguchi, it participated in the disastrous Operation U-Go, the invasion of British India. The division suffered catastrophic losses from combat, disease, and starvation during the Battle of Imphal and the subsequent retreat. After being rebuilt, it was transferred to the Philippines under the Fourteenth Area Army commanded by Tomoyuki Yamashita. The division was effectively destroyed in the defensive battles on Luzon, particularly around the Balete Pass and during the Battle of Wawa Dam.

Notable personnel

Several officers associated with the division achieved prominence. Masafumi Yamauchi, its commander at Imphal, was a noted artillery specialist. Jun Ushiroku served as its commander before rising to senior roles in the Imperial General Headquarters. Colonel Yoshimi Tanida, who commanded the 60th Infantry Regiment, was known for his leadership in China. The division also included soldiers who were later convicted of war crimes during the Tokyo Trials and the International Military Tribunal for the Far East.

Category:Infantry divisions of the Imperial Japanese Army Category:Military units and formations established in 1905 Category:Military units and formations disestablished in 1945