Hideyoshi's Invasion Force Organization

Timeline

1. 1591–1592Nagoya Castle · HizenToyotomi Hideyoshi issued 'domain-swap' mobilization orders to the major daimyo in the name of the kampaku, allocating troops and provisions according to rice yield; land and naval forces assembled at Nagoya Castle, organized into the First Corps (with Konishi Yukinaga and Katō Kiyomasa as vanguard) and other formations, preparing to cross the sea and attack Korea.
2. 1592–1593Line from Busanpo to Pyongyang · Korean PeninsulaIn April 1592 Konishi Yukinaga landed at Busan, and the various corps advanced northward along separate routes; arquebus units and cavalry in coordination captured Seoul and Pyongyang. After Ming troops entered the war in early 1593, the invasion force withdrew to positions south of the capital, shifting to a defensive standoff posture and establishing a garrison and stronghold network in Korea.
3. 1597–1598Southern Korean coast (Gyeongsang and Jeolla provinces) · Gyeongsang ProvinceThe second invasion in August 1597, with Mōri Hidemoto as commander-in-chief, focused on attacking Jeolla Province and Ming supply lines; after the Battle of Noryang in 1598, following Toyotomi Hideyoshi's death, the Go-Tairō orchestrated a secret withdrawal, the invasion force organization collapsed, and the remaining troops largely returned to Japan by year's end.