Battles of Komaki and Nagakute

Also called: Komaki Campaign, Battle of Nagakute

Hashiba (Toyotomi) Hideyoshi fought the allied forces of Nobunaga’s son Oda Nobukatsu and Tokugawa Ieyasu across Owari. Ieyasu won at Nagakute, but when Nobukatsu made a separate peace, Hideyoshi came out politically on top.

When Hideyoshi took power over the heads of the Oda family, Nobunaga’s second son Nobukatsu allied with Ieyasu and took up arms in spring 1584. Ieyasu encamped on Mount Komaki and Hideyoshi’s larger army entrenched to the north, and a long stand-off followed. When Ikeda Tsuneoki and others on Hideyoshi’s side slipped away to strike at Ieyasu’s home province of Mikawa, Ieyasu caught them at Nagakute on 18 May and killed Ikeda Tsuneoki and Mori Nagayoshi.

But as Hideyoshi pressed Nobukatsu’s lands, Nobukatsu made a separate peace at the end of the year, and Ieyasu, left without a cause, withdrew, sending a son (later Yūki Hideyasu) to Hideyoshi as an adopted son. Hideyoshi became kampaku in 1585, and in 1586, sending his sister and mother as pledges, brought Ieyasu to Osaka to submit as his vassal. The campaign kept Ieyasu’s standing as the greatest daimyo under Hideyoshi.