16th-century samurai fought over a divided Japan. Takeda Shingen was one of the strongest. Known for his furin-kazan swift attack strategy, masterfully incorporating a strong cavalry and stealthy ninja warriors. He totally defeated future shogun, Tokugawa Ieyasu. He also exerted political power, mining gold to amass enormous wealth, implementing flood control and improving rice production. This much-loved military commander who greatly influenced the later Edo period still has wisdom to share.