Abstract
Tokugawa Ieyasu's diplomacy in the early seventeenth century reveals a moment of Japanese openness to global exchange before the onset of seclusion. In the aftermath of Hideyoshi's unification campaigns, Ieyasu welcomed envoys from Spain, the Netherlands, and England, pursuing trade to secure vital resources such as raw silk. Through the red-seal system, negotiations with Manila, and correspondence with European monarchs, Ieyasu diversified Japan's foreign relations while resisting Catholic missionary pressures. His neutrality in European rivalries, combined with pragmatic economic strategies, underscored an international outlook. Cryns examines how Ieyasu balanced commerce, diplomacy, and religious tensions during this pivotal transitional period.