The Battle of Nagashino was a famous battle in Japanese history, fought in 1575 at Nagashino in Mikawa Province. The allied forces of Oda Nobunaga and Tokugawa Ieyasu (38,000) fought against Takeda Katsuyori's forces (15,000) and the allied forces won a crushing victory over the Takeda clan. As a result, Oda Nobunaga's unification of Japan was seen as certain.