China is one of japan's closest neighbors. how did china affect japan's political development?

One of the ways in which China affected Japan's political development is that it was a land of great natural resources--meaning that Japan's rulers often would launch invasions into China to gain materials and land.

Answer: tokugawa ieyasu (徳川家康, january 31, 1543 – june 1, 1616) was the founder and first shōgun of the tokugawa shogunate of japan, which effectively ruled japan from the battle of sekigahara in 1600 until the meiji restoration in 1868.