The Joseon fleet of 150 ships did nothing and sat idle at port while Gyeongsang Left Navy Commander Bak Hong reported to Gyeongsang Right Navy Commander Won Gyun, who thought the invasion might have been a really large trade mission.
The commander of Busan, Yeong Bal, spotted the invasion fleet while hunting on Yeong Island off Busan Harbor and rushed back to Busan to prepare defenses.
Early in the morning of May 24, 1592, Sō Yoshitoshi attacked Busan. They tried to take the south gate first but took heavy casualties and were forced to switch to the north gate. The Japanese took high ground positions on the mountain behind Busan and shot at Korean defenders within the city until they created a breach in their northern defenses. The Koreans ran out of arrows and Commander Jeong Bal was then struck by a bullet and died, causing morale to collapse and the swift fall of the city.
The Japanese massacred thousands. "Both men, women, and even dogs and cats were beheaded." The First Division rested overnight at Busan and then advanced towards Dongnae.
Gyeongsang Left Navy Commander Bak Hong watched the fall of Busan from a distance. He then scuttled his fleet of 100 ships, destroyed the weapons and provisions, and fled to Hanseong.
There is a statue of Jeong Bal next to the Japanese Consulate in Busan.
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