Question 1:
Korea's location has played a central role in their relationship with China thorughout history. China's proximity to the Korea meant that both cultures greatly influenced each other, and there was significant trade operating in this area. However, China has had a stable government and large population for much of its history, giving them a considerable advantage in military affairs. Also, the proximity of Japan to both countries represented a common threat that often motivated alliances.
During the Ming dynasty, interactions between the two countries were mostly peaceful and close, based on their shared Confucian values and their shared origin from Mongol rule.
Question 2:
Tokugawa Ieyasu was the founder and first shogun of the Tokugawa Shogunate of Japan. The shogunate ruled Japan from 1600 until the Meiji Restoration in 1868. Ieyasue obtained power in 1600 and remained in power until his death in 1616. When Tokugawa Ieyasu took power in 1600, about 20% of Japan was controlled by Tokugawa or related households.
