Linked from
The 11 pages that link to Battle of Dan-no-ura, each with the reason it gives.
Genpei WarBroader topic: The Taira defeat and the child emperor Antoku’s death ended the war.
Taira clanBroader topic: The battle destroyed the Taira’s military power and killed Emperor Antoku.
Kanmon StraitsBroader topic: The battle unfolded in the strait near Shimonoseki.
ShimonosekiBroader topic: The battle took place in waters beside present-day Shimonoseki.