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BATTLE // November 6, 1868

Battle of Aizu

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Overview

The Battle of Aizu was fought in northern Japan from October to November in autumn 1868, and was part of the Boshin War.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The Battle of Aizu was fought in northern Japan during the autumn of 1868 as part of the broader Boshin War between imperial forces and the Tokugawa shogunate. The imperial coalition, led by commanders from Satsuma Domain, fielded a force of approximately 15,000 against a shogunate force of roughly 5,000, resulting in shogunate casualties of nearly 3,000. The engagement formed part of the northern campaign through which imperial forces systematically reduced remaining shogunate resistance following the fall of Edo, consolidating Meiji authority over domains that had remained loyal to the Tokugawa. The disparity in force sizes and the scale of shogunate losses indicate the degree to which organized resistance in the Tohoku region had been overwhelmed by the time the battle concluded in November 1868.

Forces & casualties

Troop strength

  • Satsuma Domain15,000
    medium
  • Shogunate5,000
    medium

Satsuma Domain fielded a 3.0 : 1 numerical advantage

Casualties

  • Shogunate2,977
    medium60% loss rate

Commanders (14)

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Last verified June 2026
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