Battle of Miyajima · Itsukushima 1555
The Battle of Itsukushima: A Samurai Night Attack on a World Heritage Island
One of Japan's most famous night attacks was fought on an island so sacred it is now a World Heritage Site.
Stormy dusk over the Miyajima torii, faint boat shadows on the water — symbolic of the night landing (note: the assault was at night).
In 1555 Mori Motonari, lord of a rising clan in Aki, faced the much larger force of Sue Harukata. Rather than meet it head-on, he lured the enemy onto the narrow, sacred island of Miyajima — and struck at night, in a storm, when the bigger army had no room to use its numbers.
The surprise shattered Sue's force. The victory launched the Mori toward dominance over western Japan, the power base their grandson would later anchor at Hiroshima Castle.
Because bloodshed was considered a defilement of the holy island, purification rites are said to have followed the battle.
True, or told?
A decisive Mori victory by surprise attack is well documented. Exact troop numbers and some tactical details vary between sources.
The Hiroshima thread
The island is Itsukushima — Miyajima — the World Heritage shrine you can visit today. The floating torii you photograph stands on a battlefield.
These weren't far-away legends.
The warlords of these stories built their castles in Aki — today's Hiroshima. Read the full arc, from the first samurai to the last.
Read “The Real Samurai” →Where this fits
Bring a piece of this history home.
Hand-finished goshuin castle seals — printed on paper recycled from the paper cranes offered at the Hiroshima Peace Memorial Park. One seal, one castle, one story.
Visit the 御城印 shop →