Deuteronomy 20:20
Only the trees which you know that they be not trees for meat, you shall destroy and cut them down; and you shall build bulwarks against the city that makes war with you, until it be subdued.
Nave's Topical Index—AKJV

2 Chronicles 26:15
And he made in Jerusalem engines, invented by cunning men, to be on the towers and on the bulwarks, to shoot arrows and great stones with. And his name spread far abroad; for he was marvelously helped, till he was strong.
Nave's Topical Index—AKJV

Ecclesiastes 9:14
There was a little city, and few men within it; and there came a great king against it, and besieged it, and built great bulwarks against it:
Nave's Topical Index—AKJV