Naval Commander
"Without full fleet preparations and tide coordination, an open sea assault is suicidal."— Hesitating before court orders prior to Chilcheollyang.
Won Gyun (1540–1597) was a Joseon naval commander during the Imjin War who co-commanded early victorious naval operations, but met a tragic end at the Battle of Chilcheollyang.
Passing the military examination in his youth, Won Gyun served on the northern frontier, gaining recognition for fighting Jurchen raiders. Prior to the Imjin War in 1592, he was appointed as Left Naval Commander of Gyeongsang Province. When the Japanese invasion forces landed at Busan, Won Gyun was forced to scuttle part of his fleet and requested urgent naval support from Admiral Yi Sun-sin in neighboring Cholla Province.
Joining forces with Yi Sun-sin, Won Gyun participated in early victories including the Battles of Okpo, Sacheon, Tangpo, and Hansando. The combined fleet successfully severed Japanese maritime supply lines. However, personal rivalries and differing tactical opinions created severe friction between Won Gyun and Yi Sun-sin, leading the court to transfer Won Gyun to land commands.
In 1597, following the arrest of Yi Sun-sin caused by Japanese counter-intelligence (the agent Yoshira), Won Gyun was appointed Supreme Naval Commander of the Three Provinces. Hesitant to sail into an open sea assault due to unverified intelligence and unprepared crews, Won Gyun nevertheless faced overwhelming pressure and threats of execution from the royal court to launch an immediate attack. At the Battle of Chilcheollyang, the Joseon fleet was ambushed at night by Todo Takatora's Japanese forces, resulting in the destruction of over 160 Joseon warships and Won Gyun's death in battle.