1575: The Battle of Nagashino and the Decline of the Takeda
Around Nagashino Castle in Mikawa, the allied Oda-Tokugawa army of 38,000 clashed with Takeda Katsuyori's 15,000 troops at Shitaragahara. Using anti-cavalry palisades and massed arquebusiers, Nobunaga repelled the Takeda's famed cavalry charges, killing many senior retainers including Yamagata Masakage and Baba Nobuharu. The defeat gutted the Takeda's core forces, and although the clan endured, it never fully recovered its former offensive strength.
Events this year
6/29
The allied forces of Oda Nobunaga and Tokugawa Ieyasu, marching to relieve Nagashino Castle, defeated Takeda Katsuyori at Shitaragahara, where the Takeda lost many senior commanders.
See this battle in detail →Sources Wikipedia「長篠の戦い」／Wikipedia「設楽原の戦い」
8/15
Nobunaga launched a two-pronged assault on the ikki through Kinome Pass and Sugitsu, subduing Echizen in short order. The mop-up was thorough — 1,500 were killed in Fuchū town alone — and the ikki's rule of the province, which had held it since the fall of the Asakura, came to an end.
See this battle in detail →Sources 福井県立図書館・文書館『福井県史』通史編3 近世一「信長の越前侵攻と一揆の壊滅」
Month 9
After the suppression of the Echizen Ikkō uprising, Oda Nobunaga entrusted Shibata Katsuie with eight districts of Echizen and the northern campaign. Katsuie began developing Kitanoshō Castle and its town.
9/2
After subduing the Echizen Ikkō-ikki, Nobunaga granted two districts around Fuchū to Maeda Toshiie, Sassa Narimasa, and Fuwa Mitsuharu, who governed Echizen as adjutants and overseers under Shibata Katsuie.
Under Oda Nobunaga's orders, Akechi Mitsuhide began the conquest of Tamba. He surrounded Kuroi Castle but was forced to retreat after Hatano Hideharu defected and his army was attacked from both sides.