Yi joined the navy in [[1580]] and was appointed commander of the Left Jeolla-do Naval District. After being falsely accused of desertion, however, he was forced to leave the navy and returned to being an officer in the Military Training Center in [[1582]]. His father passed away the following year, and Yi left the military to enter into a three-year formal period of mourning. | Yi joined the navy in [[1580]] and was appointed commander of the Left Jeolla-do Naval District. After being falsely accused of desertion, however, he was forced to leave the navy and returned to being an officer in the Military Training Center in [[1582]]. His father passed away the following year, and Yi left the military to enter into a three-year formal period of mourning. |