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Yi is celebrated in Korea for his strategic or tactical genius, but the technologies employed in these battles also feature prominently, and include highly-armored [[turtle ships]], and various forms of cannon. In addition to merely winning victories, Yi succeeded in cutting off Japanese supply lines in the waters on the western side of the Korean peninsula, and simultaneously protecting the [[Ming Dynasty|Ming Chinese]]/Korean supply lines.<ref>Morgan Pitelka, ''Spectacular Accumulation'', University of Hawaii Press (2016), 76-78.</ref> Throughout the war, for seven years, Yi kept a war diary, entitled ''Nanjung ilgi'' (亂中日記).

Yi is celebrated in Korea for his strategic or tactical genius, but the technologies employed in these battles also feature prominently, and include highly-armored [[turtle ships]], and various forms of cannon. In addition to merely winning victories, Yi succeeded in cutting off Japanese supply lines in the waters on the western side of the Korean peninsula, and simultaneously protecting the [[Ming Dynasty|Ming Chinese]]/Korean supply lines.<ref>Morgan Pitelka, ''Spectacular Accumulation'', University of Hawaii Press (2016), 76-78.</ref> Throughout the war, for seven years, Yi kept a war diary, entitled ''Nanjung ilgi'' (亂中日記).

Despite his prominent role in defeating the first Japanese invasion in 1592-1593, Yi was stripped of his post as commander of the three provinces and imprisoned on [[1597]]/2/26. He was released roughly one month later, on 4/1, and learned of the death of his mother shortly afterward, on 4/13.

Despite his prominent role in defeating the first Japanese invasion in 1592-1593, Yi was stripped of his post as commander of the three provinces and imprisoned on [[1597]]/2/26 after defying his superiors' orders to launch attacks on [[Kato Kiyomasa|Katô Kiyomasa]], who he suspected was luring the Koreans into a trap. Yi was released roughly one month later, on 4/1, and learned of the death of his mother shortly afterward, on 4/13.

By 8/3, he was reappointed to his post as naval commander of the three provinces on 8/3. He then led a small group of some 16 ships to victory against a fleet of 133 Japanese vessels in the [[battle of Myeongnyang]] on 9/16. Yi's third son Myeon died in the 10th month of that year.

By 8/3, he was reappointed to his post as naval commander of the three provinces on 8/3. He then led a small group of some 16 ships to victory against a fleet of 133 Japanese vessels in the [[battle of Myeongnyang]] on 9/16. Yi's third son Myeon died in the 10th month of that year.