Battle of Bonari Pass
The Battle of Bonari Pass (Japanese: 母成峠の戦い) was part of the Boshin War, and occurred on the 6 October 1868 (Gregorian Calendar), or the 21st day of the Eighth Month, Keiō-4 year (Japanese calendar). The Bonari pass was a strategic access at the limit of the fief of Aizu.