⛩️ East Asiahard
Battle of Busan
1592 CE · Busan, Korea
Quick Facts
- Year
- 1592 CE
- Location
- Busan, Korea
- Era
- ⛩️ East Asia
- Difficulty
- hard

The Battle of Busan was the opening engagement of the Imjin War, Japan's massive invasion of Korea in 1592. An invasion force of over 700 ships carrying approximately 158,000 Japanese soldiers landed at Busan and quickly overwhelmed the Korean garrison. The fortress commander Jeong Bal fought to the death as Japanese troops armed with matchlock rifles stormed the walls. The fall of Busan opened the door for the rapid Japanese advance up the Korean peninsula toward Seoul.
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Toyotomi Hideyoshi's invasion of Korea at Busan in 1592 involved roughly 158,000 soldiers, making it one of the largest overseas military expeditions in world history up to that time.