1. Jeremiah 52:14 (ESV)
  2. Exposition

Why did the Babylonian army destroy the walls of Jerusalem?  

Jeremiah 52:14 (ESV)

14 And all the army of the Chaldeans, who were with the captain of the guard, broke down all the walls around Jerusalem.

Nebuzaradan leads his army in destroying the walls of Jerusalem. This would have left the city without any defences. The Babylonians were determined that Jerusalem would never again be able to function as a focus for rebellion.1