We’ll there was that time Kublai Khan tried to invade Japan with the largest amphibious assault in history (until D-day) and got absolutely wrecked by a typhoon.
Then tried again a few years later, with an even larger force, and got wrecked by another typhoon.
We’ll there was that time Kublai Khan tried to invade Japan with the largest amphibious assault in history (until D-day) and got absolutely wrecked by a typhoon.
Then tried again a few years later, with an even larger force, and got wrecked by another typhoon.
https://en.wikipedia.org/wiki/Mongol_invasions_of_Japan
I doubt if it counts as a blunder, but thanks for sharing anyway.