The Battle of Nagashino took place in 1575 during Japan's Sengoku period. It was fought between the forces of the Takeda clan, led by Takeda Katsuyori, and the combined armies of the Tokugawa and Oda clans. The battle is notable for the effective use of firearms by the defending forces, which marked a significant shift in Japanese warfare. The Tokugawa and Oda forces, commanded by Tokugawa Ieyasu and Oda Nobunaga, utilized a defensive position with wooden palisades. They employed a strategy that involved firing volleys of matchlock guns, which decimated the Takeda cavalry charges. This battle demonstrated the growing importance of gunpowder in military tactics in Japan.