Gwon Yul

When Japanese troops at Geumsan (금산), Jeolla province began to move to Jeonju (전주), Gwon moved his army to Ichi (배고개, 이치; 梨峙), a gateway to Jeonju. Ten thousand Japanese troops under Kobayakawa Takakage (小早川隆景) attacked Ichi. About 1,000 of Gwon's men fought and won the battle. Gwon supervised his unit by executing deserters personally, and his vanguard commander Hwang Jin (황진; 黃進) kept fighting despite a gunshot injury. The battle resulted in the recapture of the Jeolla province.

The Joseon Government recognized Gwon's heroics, and named him the new governor of the Jeolla province in the following year. Gwon then led an army of 10,000 to Gyeonggi to recapture Seoul once more, where he was joined by local militia and monks, which enabled Gwon to gather up to 20,000 men. Gwon's troops were stationed in the fortress Doksung (독성; 禿城) near Suwon (수원). Japanese forces led by Ukita Hideie (宇喜多秀家) laid siege to the fort for one month, and Gwon's army was running out of water supplies. One day, Gwon ordered several war horses to be brought on the fort wall and washed with grains of rice. From a distance, it looked like the horses were bathed with plenty of water. The Japanese, who were waiting for the fort's water supply to run out, lost their spirits and retreated to Seoul. Gwon chased the retreating Japanese, inflicting casualties of over 3,000 men. After the war, the king Seonjo built a monument on the top of Doksung named Semadae (세마대; 洗馬臺), "the place where horses were washed", as a tribute to Gwon. After the battle, the Joseon government ordered Gwon to march northward and combat the Japanese in Seoul.

Gwon and his men set up camp in the run-down fortress of Haengju (행주산성; 幸州山城) near Seoul. Although his forces were joined by local militias led by Kim Chun-il and monk soldiers led by Cheo Yung, his entire unit in Haengju was no more than 2,800 men. Threatened by this action, Japanese commanders Katō Kiyomasa (加藤清正) and Ukita, attacked Haengju fortress with 30,000 men, trying to finish off Gwon's troops once and for all. Ukita, who never led the attack in the frontline directly, led the Japanese toward the fortress. The Battle of Haengju commenced early in the morning of 12 February 1593. Japanese troops under Kato and Ukita, armed with muskets, surrounded the fortress and launched several massive attacks. However, Gwon's forces and the civilians at the fortress resisted heavily, throwing rocks, arrows, iron pellets, burning oil and molten iron at the Japanese. Korean anti-personnel gunpowder weapons called hwachas (화차; 火車) and explosive cannon shells called bigyeokjincheolloi (비격진천뢰; 飛擊震天雷) were also utilized in this battle. The Japanese, with over 10,000 casualties and top generals Ukita, Ishida Mitsunari, and Kikkawa Hiroie wounded, were compelled to retreat and fled the region. It was one of the three greatest Korean military victories during the Seven-Year War, along with the Battle of Hansan Island (한산대첩) and the Siege of Jinju (진주대첩).

After the battle, he kept his position, until the peace talks between Ming Dynasty and Toyotomi Hideyoshi began. Then he moved to Jeolla province, and from then on, Gwon Yul became the Dowonsu, the Commander-in-chief of Korean forces. He was briefly removed from office due to his harsh treatment of deserters, but was restored back again in the following year. He ordered the Admiral of the Navy, Won Kyun, to battle the Japanese in the Battle of Chilchonryang, which was won by Japanese. However Admiral Yi Sun-sin was able to defeat the Japanese navy under Todo Takatora in the Battle of Myeongnyang. In 1597, Gwon and the Chinese commander Ma Gui planned to combat the Japanese in Ulsan, but the Chinese commander-in-chief ordered Gwon to withdraw. Then Gwon tried to attack the Japanese in Suncheon, but the idea was again rejected by the Chinese.