The Dutch East India Company missions to Edo were regular tribute missions to the court of the Tokugawa Shogun in Edo (modern Tokyo) to reassure the ties between the Bakufu and the Opperhoofd. The Opperhoofd of the Dutch factory in Dejima and his attendants were escorted by the Japanese to Edo where they presented exotic and elaborate gifts to the Shogun: clocks, telescopes, medicines, artillery and rare animals were usual gifts of the tribute missions. The Shogun would correspond at the same time with gifts to the Dutch. The tribute system, as in China, served to enhance the idea of the Shogun's supremacy to his subjects.