No Prep Plans: Ancient Korea Wars, Politics & Turning PointsJapanese Invasions of Korea (Imjin War)Research + Group Project (War Strategy & Defense Report)Grades 6–10Bring one of the most dramatic conflicts in Korean history to life with this engaging, low-prep research and group project! In this lesson, students investigate the Japanese invasions of Korea (1592–1598), better known as the Imjin War, while exploring the leadership of Admiral Yi Sun-sin, the famous turtle ships, and the resilience