After Hancheong, which had been the capital of Yi Dynasty Korea, fell easily, Japanese commanders held a war council in June in Hancheong and determined targets of subjugation called Hachidokuniwari (literally, dividing the country into eight routes) by each corps (the First Division of Yukinaga KONISHI and others from Pyeongan Province, the Second Division of Kiyomasa KATO and others from Hangyong Province, the Third Division of Nagamasa KURODA and others from Hwanghae Province, the Forth Division of Yoshinari MORI and others from Gangwon Province; the Fifth Division of Masanori FUKUSHIMA and others from Chungcheong Province; the Sixth Division by Takakage KOBAYAKAWA and others from Jeolla Province, the Seventh Division by Terumoto MORI and others from Gyeongsang Province, and the Eighth Division of Hideie UKITA and others from Gyeonggi Province).
容易に李氏朝鮮の首都である漢城が陥落すると、日本の諸将は5月に漢城にて軍議を開き、各方面軍による八道国割と呼ばれる制圧目標を決めた（平安道から一番隊小西行長他、咸鏡道から二番隊加藤清正他、黄海道から三番隊黒田長政他、江原道から四番隊毛利吉成他、忠清道から五番隊福島正則他、全羅道から六番隊小早川隆景他、慶尚道から七番隊毛利輝元他、京畿道から八番隊宇喜多秀家他）。