I'm pretty sure it's the great wall of china
To keep Invaders out of China
to keep invaders out
the great wall
there is a fairly large wall that was built to keep out invaders
The Great Wall was constructed to help defend against invaders, like the Mongols.
It was built to protect the country from raids.
to keep out the Mongol invaders
They built it because they wanted to keep invaders out. ------------------------------------------------------------------------ Specifically, the emperor was afraid of being conquered and killed by the Mongolian and Hun tribes north of Imperial China.
If you mean the reason it was built, it was the emperor Shi Huangdi of the Qin dynasty wanted to unify China, so he built the great wall. Also to keep out invaders such as Mongolia and nomads.
it was used to keep out invaders
The Emperor Hadrian built a wall from coast to coast in what is now northern England - Hadrian's Wall.
The Great Wall of China was originally built to keep Mongol invaders out of China. And basically..... it worked! Until a Chinese general opened the gate to the Mongols.