Supreme Commander (Dowonsu)
"Hold the fortress to the last man; not an inch of our land shall be yielded."— Rallying defenders during the Siege of Haengju.
Gwon Yul (1537–1599) was the Supreme Commander (Dowonsu) of Joseon's land forces during the Imjin War, famous for leading one of the greatest military victories in Korean history at the Battle of Haengju.
Born into a distinguished noble family, Gwon Yul passed the civil service examination relatively late in life at age 46. When the Imjin War broke out in 1592, he served as the magistrate of Gwangju in Jeolla Province. Recognizing the imminent threat to Korea's southern agricultural heartland, Gwon Yul mobilized volunteer troops and joint forces. At the Battle of Ichi, he successfully defended the mountain pass into Jeolla, halting Kobayakawa Takakage's army and securing the province's food supplies for the war effort.
In early 1593, Gwon Yul advanced north with 2,300 troops to support the allied effort to liberate Hanyang (Seoul). He established a fortified position behind wooden palisades at Haengju Mountain Fortress overlooking the Han River. On March 14, a massive Japanese force of 30,000 commanded by Ukita Hideie and Kato Kiyomasa launched seven consecutive wave attacks on Haengju. Gwon Yul expertly orchestrated the defense using heavy artillery, mortar shells (Bigyeok Jincheonroe), and rocket arrows (Singijeon). Local women gathered and carried stones in their aprons (Haengju Chima) to throw at the attackers. Suffering over 10,000 casualties, the Japanese army retreated in disarray.
Following his triumph at Haengju, Gwon Yul was promoted to Dowonsu (Commander-in-Chief of all land forces). He spent the remainder of the war coordinating army operations, supporting guerrilla militias, and rebuilding Joseon's defense infrastructure. Gwon Yul passed away in 1599 shortly after the war ended, honored as one of Joseon's greatest national heroes.