'Forts' in the Bible

Azmaveth the son of Adiel was in charge of the king’s storerooms; and Jonathan the son of Uzziah was in charge of the storehouses in the country, in the cities, in the villages, and in the towers.

Moreover, he built cities in the hill country of Judah, and in the forests he built fortresses and towers.

Pharaoh with his mighty army and great company will not help him in the war, when they (the Babylonians) put up ramps and build siege walls to destroy many lives.