'Fortified City' in the Bible

You shall strike every fortified city, and every choice city, and shall fell every good tree, and stop all springs of water, and mar every good piece of land with stones.'"

"Now as soon as this letter comes to you, since your master's sons are with you, and there are with you chariots and horses, a fortified city also, and armor.

The children of Israel did secretly things that were not right against the LORD their God: and they built them high places in all their cities, from the tower of the watchmen to the fortified city;

He struck the Philistines to Gaza and its borders, from the tower of the watchmen to the fortified city.