After unifying Japan’s warring states, supreme feudal lord Hideyoshi launched a massive invasion of Korea. In 1593, a year into this Imjin War of 1592-1598, he sent an envoy to Taiwan on a doomed mission to establish formal diplomatic and trade relations.  In 1609 and 1616, the Japanese Shogun Tokugawa Ieyasu, hoping to establish indirect trading links with China, sent two larger missions to Taiwan.  They were led and manned by Christian samurai from the island of Kyushu, which in the late 1500s had seen amazing success by Portuguese and Spanish missionaries in converting the population.  Both expeditions to Taiwan were failures to the point of farce, but the many misunderstandings and missteps make for fantastic stories.  Get ready for some katana-flavored diplomacy, with generous servings of piracy, abducted envoys, and a lot of seppuku.