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How did Tokugawa Ieyasu receive military and government training in Sumpu?

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Statue of Tokugawa Ieyasu in ornate robes holding a bow, with arrows on his back, at the Tosho-gu shrine in Nikko, Japan. — Tokugawa Ieyasu Statue of Tokugawa Ieyasu at the Tōshō Shrine in Nikkō, Japan.

Tokugawa Ieyasu received his military and governmental training while living in Sumpu (modern-day Shizuoka) as a hostage of the Imagawa clan. During his time there, he benefited from more settled conditions than he had experienced in his early childhood.12

In this environment, Ieyasu was formally trained in the military and governmental arts. By his teenage years, he began to acquire practical military experience by leading forces on behalf of the clan leader, Imagawa Yoshimoto. Beyond his formal training, he also developed a personal interest in falconry during these years.12