The National Defense Great Formation that Empress Dowager Xia insisted on rebuilding back then was a crucial reason why the Summer Country was able to quickly emerge from the chaos of war and stabilize swiftly after the disaster of a ruined nation.
Its power is certainly extraordinary.
For any nation, the National Defense Great Formation is a fundamental existence.
However, as the greatest card in the national defense of the Summer Country, the National Defense Great Formation must not be brought out too early.
Not to mention, the resources consumed by activating the National Defense Great Formation are truly terrifying. Every day it is activated, vast amounts of Dao Yuan Stones are depleted, making it impossible to use as a regular means.
Therefore, there is a need for defensive lines like Jianfeng Mountain to supplement national defense and resist external threats.
But now, Jianfeng Mountain can no longer be relied upon.
