Babylon: Babylon the Capital of Surrounded with a Great Wall and Fortified
Source: TTT
Jeremiah 51:53, 58
Even if Babylon ascends to the heavens and fortifies her lofty stronghold, the destroyers I send will come against her,” declares the LORD. / This is what the LORD of Hosts says: “Babylon’s thick walls will be leveled, and her high gates consumed by fire. So the labor of the people will be for nothing; the nations will exhaust themselves to fuel the flames.”