Turtle Ships played a major role in the Korean victory over the Japanese navy in the Battle of Angolpo (also sometimes called the Battle of the Yellow Sea). At Angolpo, the Korean fleet of fifty-seven vessels under Admiral Yi Sun-sin faced off against a numerically superior Japanese fleet of one hundred fifty-five ships under Admirals Wakisaka Yasuharu, Kuki Yoshitaka, and Kato Yoshiaki. Admiral Yasuharu’s fleet of sixty-three ships was lured into the Hansan Bay by the outnumbered Korean fleet of warships and Turtle Ships, where it was caught and enveloped in Yi Sun-sin’s famous crane formation. The trapped Japanese fleet was eviscerated by the Turtle Ship’s weaponry, and found themselves unable to effectively counterattack due to the Turtle Ship’s unprecedented nimbleness and maneuverability on the sea. Admiral Yi’s fleet then attacked the ships of Yoshitaka and Yoshiaki, during which, victory was cemented for the Joseon. Turtle Ships greatly contributed to the total Japanese fleet loss of fifty-nine ships in the Battle of Angolpo.