Saracus, the Assyrian king, determined on dividing his forces: and, while he entrusted a portion of them to a general, Nabopolassar, who had orders to proceed to Babylon and engage the enemy advancing from the sea, he himself with the remainder made ready to receive the Medes.

In idea this was probably a judicious disposition of the troops at his disposal; it was politic to prevent a junction of the two assailing powers, and, as the greater danger was that which threatened from the Medes, it was well for the king to reserve himself with the bulk of his forces to meet this enemy.

But the most prudent arrangements may be disconcerted by the treachery of those who are entrusted with their execution; and so it was in the present instance.

The faithless Nabopolassar saw in his sovereign's difficulty his own opportunity and, instead of marching against Assyria's enemies, as his duty required him, he secretly negotiated an arrangement with Cyaxares, agreed to become his ally against the Assyrians, and obtained the Median king's daughter as a bride for Nebuchadnezzar, his eldest son.

Cyaxares and Nabopolassar then joined their efforts against Nineveh; and Saracus, unable to resist them, took counsel of his despair, and, after all means of resistance were exhausted, burned himself in his palace.