well i would say the Himalayas that covered ancient china and the deserts
the himalayas, ocean, gobi and taklamakan desrts
The deserts protected the Egyptians from invaders,
The Alps
They were the nominal war leaders. Sometimes the fought personally, more and more they left it to their generals.
they did by using Castles
Shi Huangdi built the first incarnation of the Great Wall of China to protect China from invaders to the North.
The sand dunes act as a natural barrier, blocking strong winds.
The deserts protected the Egyptians from invaders,
The Sahara Desert on both sides of Egypt served as a natural barrier to invaders from outside and expansion from inside outward.
The Sahara Desert on both sides of Egypt served as a natural barrier to invaders from outside and expansion from inside outward.
The Alps
It had natural barriers to protect against invaders.
It was built as a fortress to protect the population, government and treasury of the ancient Russian cities from invaders.
They had sea walls and land walls to protect invaders from entering
You might protect your city-state from invaders by creating and maintaining a well-trained standing army. You might also create fortifications to block invaders.
They were the nominal war leaders. Sometimes the fought personally, more and more they left it to their generals.
to protect themselves from invaders
To protect china from invaders