Also known as: Realm Divide
The Battle of Sekigahara was fought on October 21, 1600 between the forces of those loyal to Toyotomi Hideyoshi's young son and heir, Toyotomi Hideyori (forces of the West) and Tokugawa Ieyasu (forces of the East). The battle took place in Sekigahara in modern Gifu Prefecture and was the decisive battle which led to Tokugawa taking control of all Japan.