Why couldn't one of Japan's greatest warlords break through this hillside for years? The earthworks hold the answer.
Full story in 60 seconds, on YouTube:
https://youtu.be/6hrOpTnPzUU

Why couldn't one of Japan's greatest warlords break through this hillside for years? The earthworks hold the answer.
Full story in 60 seconds, on YouTube:
https://youtu.be/6hrOpTnPzUU