Improvements were made in it from time to time; thus, cavalry came to supersede the use of chariots, and the weapons and armour of the troops were changed and improved.

Engineers and sappers accompanied it, cutting down the forests and making roads as it marched, and the commissariat was carefully attended to.

The royal tent was arranged like a house, and one of its rooms was fitted up as a kitchen, where the food was prepared as in the palace of Nineveh.

In Babylonia it was the fleet rather than the army which was the object of concern, though under Nebuchadrezzar and his successors the army also became an important engine of war.

But, unlike the Assyrians, the Babylonians had been from the first a water-faring people, and the ship of war floated on the Euphrates by the side of the merchant vessel and the state barge of the king.
Such then were the kingdoms of Babylonia and Assyria.