Judging from the map, how might China have benefited from building the Great?

Explanation:

In total, the Great Wall of China took more than 2,000 years to build - between 770 BC and 1633 AD. However, its construction was completed in stages - spanning over several dynasties and leaderships.

China has a sense of identity for the Chinese. This is one of the biggest advantages that the Great Wall created.

It portrayed Chinas endurance as well as their economical and political power.

The wall was also a great source of protection. Many of the great Chinese dynasties such as the Han, Qin, Ming dynasties benefited from it.

they made rome the dominant power in the mediterranean.