Battle of Kashii

Battle of Kashii
	Part of the siege of Osaka
	; At The remains of Kashii battlefield in Sennan, Osaka prefecture, Japan.
Date	May 26, 1615
Location	Kashii, near Wakayama Castle, Kii Province, Japan
Result	Toyotomi defeat and withdrawal
Belligerents
Tokugawa shogunate	Toyotomi clan
Commanders and leaders
Asano Nagaakira	Ōno Harunaga; Ban Naoyuki †; Okabe Noritsuna
Strength
5,000	3,000

33°39′20″N 130°26′44″E / 33.65556°N 130.44556°E / 33.65556; 130.44556

The Battle of Kashii (樫井の戦い) was the very first battle of the Summer Campaign of the 1615 Siege of Osaka, near the beginning of the Edo period in Japan. It took place on the 26th day of the 4th month of the Keichō era.

As the Shōgun's Eastern Army prepared to renew the siege begun the previous winter, the Ōsaka garrison sallied forth, ambushing Tokugawa forces in a number of skirmishes and sieges. In the battle of Kashii, a contingent of forces loyal to Toyotomi Hideyori, lord of Ōsaka, attempted to besiege Wakayama Castle, which was controlled by Asano Nagaakira, an ally of the shōgun. The attackers were led by Ōno Harunaga, Ban Naoyuki, and Okabe Noritsuna.

Tachibana Muneshige, who served as military advisor of the second shogun, Tokugawa Hidetada,^[1] has correctly predicted the movements of the general of Toyotomi, Ono Harufusa's troops and guided Hidetada's troops.^[2]

Asano's garrison realized that their attackers were far from support or reinforcements, and met them in battle at Kashii, a short distance from Wakayama. Okabe and Ban were killed in the battle, and Ōno was therefore forced to retreat back to Ōsaka.

References

^ Takamoto Shimei (1916). 立花遺香銀台遺事銀台拾遺 (日本偉人言行資料) (in Japanese). National History Research Association. pp. 111–112. Retrieved May 30, 2024.
^ 著者参謀本部 (1893). "(補伝第二百三十宗茂の卓識) / Supplementary Biography No. 230: The Brilliant Knowledge of Muneshige". 『日本戦史・大坂役』 ["Japanese War History: The Battle of Osaka"] (in Japanese). 元真社. Retrieved May 30, 2024.

Turnbull, Stephen (1998). 'The Samurai Sourcebook'. London: Cassell & Co.

[1] Takamoto Shimei (1916). 立花遺香銀台遺事銀台拾遺 (日本偉人言行資料) (in Japanese). National History Research Association. pp. 111–112. Retrieved May 30, 2024.

[2] 著者参謀本部 (1893). "(補伝第二百三十宗茂の卓識) / Supplementary Biography No. 230: The Brilliant Knowledge of Muneshige". 『日本戦史・大坂役』 ["Japanese War History: The Battle of Osaka"] (in Japanese). 元真社. Retrieved May 30, 2024.

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