New Kings and Generals animated historical documentary series will cover the Imjin War - the Japanese invasion of Korea between 1592 and 1598, as the unification process started by Oda Nobunaga was continued by Toyotomi Hideyoshi. Japanese daimyo and samurai needed new land and so they attacked the Joseon Korea, planning to then invade Ming China. The first battles of the war were the siege of Busan and the battle of Chungju.