A division of the Assyrian Empire between the allied monarchs followed. While Cyaxares claimed for his own share Assyria Proper and the various countries dependent on Assyria towards the north and the north-west, Nabopolassar was rewarded by his timely defection, not merely by independence but by the transfer to his government of Susiana on the one hand and of the valley of the Euphrates, Syria, and Palestine on the other. The transfer appears to have been effected quietly, the Babylonian yoke being peacefully accepted in lieu of the Assyrian without the necessity arising for any application of force. Probably it appeared to the subjects of Assyria, who had been accustomed to a monarch holding his court alternately at Nineveh and at Babylon, that the new power was merely a continuation of the old, and the monarch a legitimate successor of the old line of Ninevite kings.

Of the reign of Nabopolassar the information which has come down to us is scanty. It appears by the canon of Ptolemy that he dated his accession to the throne from the year B.C. 625, and that his reign lasted twenty-one years, from B.C. 625 to B.C. 604. During the greater portion of this period the history of Babylon is a blank. Apparently the “golden city” enjoyed her new position at the head of an empire too much to endanger it by aggression; and, her peaceful attitude provoking no hostility, she was for a while left unmolested by her neighbors. Media, bound to her by formal treaty as well as by dynastic interests, could be relied upon as a firm friend; Persia was too weak, Lydia too remote, to be formidable; in Egypt alone was there a combination of hostile feeling with military strength such as might have been expected to lead speedily to a trial of strength; but Egypt was under the rule of an aged and wary prince, one trained in the school of adversity, whose years forbade his engaging in any distant enterprise, and whose prudence led him to think more of defending his own country than of attacking others. Thus, while Psammetichus lived, Babylon had little to fear from any quarter, and could afford to “give herself to pleasures and dwell carelessly.”

The only exertion which she seems to have been called upon to make during her first eighteen years of empire resulted from the close connection which had been established between herself and Media. Cyaxares, as already remarked, proceeded from the capture of Nineveh to a long series of wars and conquests. In some, if not in all, of these he appears to have been assisted by the Babylonians, who were perhaps bound by treaty to furnish a contingent as often as he required it, Either Nabopolassar himself, or his son Nebuchadnezzar, would lead out the troops on such occasions; and thus the military spirit of both prince and people would be pretty constantly exercised.

It was as the leader of such a contingent that Nabopolassar was able on one occasion to play the important part of peacemaker in one of the bloodiest of all Cyaxares’ wars. After five years’ desperate fighting the Medes and Lydians were once more engaged in conflict when an eclipse of the sun took place. Filled with superstitious dread the two armies ceased to contend, and showed a disposition for reconciliation, of which the Babylonian monarch was not slow to take advantage. Having consulted with Syennesis of Cilicia, the foremost man of the allies on the other side, and found him well disposed to second his efforts, he proposed that the sword should be returned to the scabbard, and that a conference should be held to arrange terms of peace. This timely interference proved effectual. A peace was concluded between the Lydians and the Medes, which was cemented by a royal intermarriage: and the result was to give to Western Asia, where war and ravage had long been almost perpetual, nearly half a century of tranquillity.

Successful in his mediation, almost beyond his hopes, Nabopolassar returned from Asia Minor to Babylon. He was now advanced in years, and would no doubt gladly have spent the remainder of his days in the enjoyment of that repose which is so dear to those who feel the infirmities of age creeping upon them. But Providence had ordained otherwise. In B.C. 610—probably the very year of the eclipse—Psammetichus died, and was succeeded by his son Neco, who was in the prime of life and who in disposition was bold and enterprising. This monarch very shortly after his accession cast a covetous eye upon Syria, and in the year B.C. 608, having made vast preparations, he crossed his frontier and invaded the territories of Nabopolassar. Marching along the usual route, by the Shephilah and the plain of Esdraelon, he learned, when he neared Megiddo, that a body of troops was drawn up at that place to oppose him, Josiah, the Jewish king, regarding himself as bound to resist the passage through his territories of an army hostile to the monarch of whom he held his crown, had collected his forces, and, having placed them across the line of the invader’s march, was calmly awaiting in this position the approach of his master’s enemy. Neco hereupon sent ambassadors to persuade Josiah to let him pass, representing that he had no quarrel with the Jews, and claiming a divine sanction to his undertaking. But nothing could shake the Jewish monarch’s sense of duty; and Neco was consequently forced to engage with him, and to drive his troops from their position. Josiah, defeated and mortally wounded, returned to Jerusalem, where he died. Neco pressed forward through Syria to the Euphrates; and carrying all before him, established his dominion over the whole tract lying between Egypt on the one hand, and the “Great River” upon the other. On his return three months later he visited Jerusalem, deposed Jehoahaz, a younger son of Josiah, whom the people had made king, and gave the crown to Jehoiakim, his elder brother. It was probably about this time that he besieged and took Gaza, the most important of the Philistine towns next to Ashdod.

The loss of this large and valuable territory did not at once arouse the Babylonian monarch from his inaction or induce him to make any effort for its recovery. Neco enjoyed his conquests in quiet for the space of at least three full years. At length, in the year B.C. 605, Nabopolassar, who felt himself unequal to the fatigues of a campaign, resolved to entrust his forces to Nebuchadnezzar, his son, and to send him to contend with the Egyptians. The key of Syria at this time was Carchemish, a city situated on the right bank of the Euphrates, probably near the site which was afterwards occupied by Hierapolis. Here the forces of Neco were drawn up to protect his conquests, and here Nebuchadnezzar proceeded boldly to attack them. A great battle was fought in the vicinity of the river, which was utterly disastrous to the Egyptians, who “fled away” in confusion, and seem not to have ventured on making a second stand. Nebuchadnezzar rapidly recovered the lost territory, received the submission of Jehoiakim, king of Judah, restored the old frontier line, and probably pressed on into Egypt itself, hoping to cripple or even to crush his presumptuous adversary. But at this point he was compelled to pause. News arrived from Babylon that Nabopolassar was dead; and the Babylonian prince, who feared a disputed succession, having first concluded a hasty arrangement with Neco, returned at his best speed to his capital.

Arriving probably before he was expected, he discovered that his fears were groundless. The priests had taken the direction of affairs during his absence, and the throne had been kept vacant for him by the Chief Priest, or Head of the Order. No pretender had started up to dispute his claims. Doubtless his military prestige, and the probability that the soldiers would adopt his cause, had helped to keep back aspirants; but perhaps it was the promptness of his return, as much as anything, that caused the crisis to pass off without difficulty.

Nebuchadnezzar is the great monarch of the Babylonian Empire, which, lasting only 88 years—from B.C. 625 to B.C. 538—was for nearly half the time under his sway. Its military glory is due chiefly to him, while the constructive energy, which constitutes its especial characteristic, belongs to it still more markedly through his character and genius. It is scarcely too much to say that, but for Nebuchadnezzar, the Babylonians would have had no place in history. At any rate, their actual place is owing almost entirely to this prince, who to the military talents of an able general added a grandeur of artistic conception and a skill in construction which place him on a par with the greatest builders of antiquity.

We have no complete, or even general account of Nebuchadnezzar’s wars. Our chief, our almost sole, information concerning them is derived from the Jewish writers. Consequently, those wars only which interested these writers, in other words those whose scene is Palestine or its immediate vicinity, admit of being placed before the reader. If Nebuchadnezzar had quarrels with the Persians, or the Arabians, or the Medes, or the tribes in Mount Zagros, as is not improbable, nothing is now known of their course or issue. Until some historical document belonging to his time shall be discovered, we must be content with a very partial knowledge of the external history of Babylon during his reign. We have a tolerably full account of his campaigns against the Jews, and some information as to the general course of the wars which he carried on with Egypt and Phoenicia; but beyond these narrow limits we know nothing.

It appears to have been only a few years after Nebuchadnezzar’s triumphant campaign against Neco that renewed troubles broke out in Syria. Phoenicia revolted under the leadership of Tyre; and about the same time Jehoiakim, the Jewish king, having obtained a promise of aid from the Egyptians, renounced his allegiance. Upon this, in his seventh year (B.C. 598), Nebuchadnezzar proceeded once more into Palestine at the head of a vast army, composed partly of his allies, the Medes, partly of his own subjects. He first invested Tyre; but, finding that city too strong to be taken by assault, he left a portion of his army to continue the siege, while he himself pressed forward against Jerusalem. On his near approach, Jehoiakim, seeing that the Egyptians did not care to come to his aid, made his submission; but Nebuchadnezzar punished his rebellion with death, and, departing from the common Oriental practice, had his dead body treated with indignity. At first he placed upon the throne Jehoia-chin, the son of the late monarch, a youth of eighteen; but three months later, becoming suspicious (probably not without reason) of this prince’s fidelity, he deposed him and had him brought a captive to Babylon, substituting in his place his uncle, Zedekiah, a brother of Jehoiakim and Jehoahaz. Meanwhile the siege of Tyre was pressed, but with little effect. A blockade is always tedious; and the blockade of an island city, strong in its navy, by an enemy unaccustomed to the sea, and therefore forced to depend mainly upon the assistance of reluctant allies, must have been a task of such extreme difficulty that one is surprised it was not given up in despair. According to the Tyrian historians their city resisted all the power of Nebuchadnezzar for thirteen years. If this statement is to be relied on, Tyre must have been still uncaptured, when the time came for its sister capital to make that last effort for freedom in which it perished.