Kōriyama Campaign

The Kōriyama Campaign (郡山合戦, Kōriyama Gassen) was a series of battles between February and July in 1588 between the Date clan and combined forces from the Ashina and Sōma clans over the areas around Kōriyama Castle and Kubota Castle in Adachi and Asaka Districts in Mutsu Province during the Ashikaga shogunate in Japan.^[2] Some accounts indicate it began following the invasion of territory belonging to the Tamura clan in April 1588 after turmoil caused by the death of Tamura Kiyoaki in 1586.^[2]

DateFebruary–July 1588

Location

Adachi and Asaka Districts, Mutsu Province, Ashikaga shogunate

Result peace, Date clan effective victory^[1]

Quick facts Date, Location ...

Kōriyama Campaign
Part of the Sengoku period
Date February–July 1588 Location Adachi and Asaka Districts, Mutsu Province, Ashikaga shogunate Result peace, Date clan effective victory[1]
Belligerents
Date clan	Ashina clan Sōma clan
Commanders and leaders
Date Masamune Date Shigezane Katakura Kagetsuna Ōuchi Sadatsuna	Ashina Yoshihiro Sōma Yoshitane Ishikawa Mitsumasa Satake Yoshishige
Strength
Unknown	Unknown
Casualties and losses
Unknown	Unknown

Close

The conflicts were settled in July 1588, with the Date clan having an effective victory.^[1]