André Geraque Kiffer 
Battle Of Sekigahara, 1600, In The Civil War In Japan From 1573 To 1615 [PDF ebook] 

The Battle of Sekigahara took place on October 21, 1600 in what is now Gifu Prefecture on the Japanese island of Honshu at the end of the Sengoku period. This battle was fought by the forces of Tokugawa Ieyasu against a coalition of clans loyal to Toyotomi, under Ishida Mitsunari, several of whom defected before or during the battle, leading to Tokugawa s victory. However, in this simulation, the loyalist army will be commanded by Môri Terumoto, who will count, then, in addition to the loyalty of all the clans aligned under the Toyotomi flag, with more effectives of his army as daymiô, as he could mobilize more than 40 thousand men for a battle.