Korean History › Late Joseon › Imjin War (Japanese invasions of Korea)
Toyotomi Hideyoshi
1537–1598· Person· Wars & invasions
Well documentedSolid records, physical evidence or scientific consensus.
The Japanese warlord who unified Japan in 1590, then invaded Korea in 1592 and 1597 aiming at Ming China.
See it on the Korean History map →What happened
Toyotomi Hideyoshi (도요토미 히데요시) rose from a commoner foot soldier to top general under the warlord Oda Nobunaga. After Nobunaga's death in 1582, he finished unifying Japan by 1590. He then demanded that Joseon give his armies passage to conquer Ming China; when Joseon refused, he invaded. He ran the war from Nagoya Castle in Kyushu and never set foot in Korea. His death in September 1598 ended the campaign.
Why it matters
His invasions devastated Korea for a generation. Japan remembers him as a great unifier; Korea remembers him as the archetypal invader.
Legacy and how we know
His own letters and orders, Japanese chronicles, and Korean and Ming records of the war and of the failed peace talks.
Still debated
Why he invaded is still argued: real plans to conquer China, keeping his samurai busy and rewarded with land, or personal ambition.
Connections (2)
▸Toyotomi Hideyoshi launched Imjin War (Japanese invasions of Korea)Well documented
The connection
Having unified Japan, Hideyoshi demanded that Joseon join him or let his armies pass to conquer Ming China. When Joseon refused, he sent about 160,000 troops in 1592 and, after peace talks collapsed, about 140,000 more in 1597, directing both campaigns from Nagoya Castle in Kyushu.
When and how
Planned 1587–1591; armies sailed from Nagoya (in today's Saga Prefecture, Kyushu) to Busan in May 1592 and again in 1597.
How we know
Hideyoshi's own letters announcing plans to conquer China and even India, his army rosters, and Korean and Ming records.
Debates and open questions
His motives are debated: true conquest ambition, finding land and work for his samurai, or forcing open trade with Ming.
▸Toyotomi Hideyoshi died months before Battle of NoryangWell documented
The connection
Hideyoshi died at Fushimi Castle on September 18, 1598. His council of regents, including Tokugawa Ieyasu, kept the death quiet and ordered the armies home. The withdrawal that followed set up Noryang, as Shimazu's fleet sailed to rescue Konishi's blockaded army.
When and how
Fushimi Castle near Kyoto, September 1598; withdrawal orders reached Korea that autumn, and the battle followed in December.
How we know
Japanese records of Hideyoshi's death and the regents' withdrawal orders, matched by Korean and Ming reports of the pullout.
Debates and open questions
How long his death stayed hidden from Korean and Ming commanders, and how that shaped their tactics, is unclear.