Intending to conquer the area west of Busan, the Japanese army caused the first Siege of Jinju (in September 1592, the Japanese army commanded by Tadaoki HOSOKAWA versus the Korean army commanded by Kim Si-min) and, after hard battles, failed in attack on the castle.
日本軍は釜山西方の制圧を画策して、第一次晋州城攻防戦（1592年9月、細川忠興指揮の日本軍対金時敏指揮の朝鮮軍）を生起させるが苦戦したうえ、攻城に失敗した。