the great wall of china could have protected china if china had unified and strong army guarding the country's border which was wall from the very top and be prepared all the top to throw big and heavy stones and also pour extremely hot water on any body who tried to climb the wall or destroy it
To stop the northern invaders.
war and conquering other countries and make it one under his ruling
The Monguls
To protect china from invaders!
it was used to keep out invaders
To protect china from invaders
To keep Invaders out of China
it protected them from invaders and wars!
to keep invaders out
the great wall
The great wall of China is on its border ,it was built to prevent invaders.
To protect Chinese villages from Mongolian invaders.