'Forts' in the Bible

and lay siege against it, and build forts against it, and cast a mound against it, and set camps against it, and place battering-rams against it round about.

Neither shall Pharaoh with his mighty army and great company make for him in the war, by casting up mounts, and building forts, to cut off many persons:

In his right hand was the divination for Jerusalem, to set battering rams, to open the mouth in the slaughter, to lift up the voice with shouting, to set battering rams against the gates, to cast up mounds, to build forts.

He shall slay with the sword thy daughters in the field, and he shall make forts against thee, and cast up a mound against thee, and lift up the target against thee;

Say thou thus unto them, Thus saith the Lord GOD; As I live, surely they that are in the wastes shall fall by the sword, and him that is in the open field will I give to the beasts to be devoured, and they that be in the forts and in the caves shall die of the pestilence.