Answer:
So, we'll be talking about history that how geographic features protected China from Invasion.
With the desert and therefore the Taklamakan Desert to the North and West, the Mountains range on the South and Pacific Ocean to the East, the country was protected against invasion, Also 2 rivers that flow through China are the Huang He and therefore the Yangtze River.
These all factors and geographic consequences helped China in a protective way.
Hope it helps!<3