Yi Sun-sin

Yi Sun-sin oversaw the deployment of the turtle ship, an ironclad warship with a spiked iron roof and cannons. These ships played a crucial role in early victories against the Japanese navy, breaking their supply lines and protecting Korean coastlines.

Admiral Yi Sun-sin, with only 13 ships, defeated a Japanese fleet of over 130 vessels in the Myeongnyang Strait. Using the strong currents and his tactical skill, he inflicted heavy losses without losing a single ship, cutting off Japanese supply lines and turning the tide of the war.

Yi Sun-sin was killed by a stray bullet during the Battle of Noryang, the final major naval engagement of the Imjin War. His death occurred as his fleet was defeating the Japanese, securing a decisive victory that ended the Japanese invasion of Korea.