Though at least one large province had still to be added to the Assyrian Empire, Sargon's reign may be considered the period of its greatest strength. He handed on to Sennacherib no conquests which could not have been made good, and the widest extent of territory which the central power was adequate to hold. We may pause, then, just before Sargon's death in 705, to see what the area of that territory actually was.

Its boundaries cannot be stated, of course, with any approach to the precision of a modern political geographer. Occupied territories faded imperceptibly into spheres of influence and these again into lands habitually, or even only occasionally, raided. In some quarters, especially from north-east round to north-west, our present understanding of the terms of ancient geography, used by Semitic scribes, is very imperfect, and, when an Assyrian king has told us carefully what lands, towns, mountains and rivers his army visited, it does not follow that we can identify them with any exactness. Nor should the royal records be taken quite at their face value. Some discount has to be allowed (but how much it is next to impossible to say) on reports, which often ascribe all the actions of a campaign not shared in by the King in person (as in certain instances can be proved) to his sole prowess, and grandiloquently enumerate twoscore princedoms and kingdoms which were traversed and subdued in the course of one summer campaign in very difficult country. The illusion of immense achievement, which it was intended thus to create, has often imposed itself on modern critics, and Tiglath Pileser and Sargon are credited with having marched to the neighbourhood of the Caspian, conquering or holding to ransom great provinces, when their forces were probably doing no more than climbing from valley to valley about the headwaters of the Tigris affluents, and raiding chiefs of no greater territorial affluence than the Kurdish beys of Hakkiari.

East of Assyria proper, the territorial empire of Sargon does not seem to have extended quite up to the Zagros watershed; but his sphere of influence included not only the heads of the Zab valleys, but also a region on the other side of the mountains, reaching as far as Hamadan and south-west Azerbaijan, although certainly not the eastern or northern districts of the latter province, or Kaswan, or any part of the Caspian littoral. On the north, the frontier of Assyrian territorial empire could be passed in a very few days' march from Nineveh. The shores of neither the Urmia nor the Van Lake were ever regularly occupied by Assyria, and, though Sargon certainly brought into his sphere of influence the kingdom of Urartu, which surrounded the latter lake and controlled the tribes as far as the western shore of the former, it is not proved that his armies ever went round the east and north of the Urmia Lake, and it is fairly clear that they left the northwestern region of mountains between Bitlis and the middle Euphrates to its own tribesmen.

Westwards and southwards, however, Sargon's arm swept a wider circuit. He held as his own all Mesopotamia up to Diarbekr, and beyond Syria not only eastern and central Cilicia, but also some districts north of Taurus, namely, the low plain of Milid or Malatia, and the southern part of Tabal; but probably his hand reached no farther over the plateau than to a line prolonged from the head of the Tokhma Su to the neighbourhood of Tyana, and returning thence to the Cilician Gates. Beyond that line began a sphere of influence which we cannot hope to define, but may guess to have extended over Cappadocia, Lycaonia and the southern part of Phrygia. Southward, all Syria was Sargon's, most of it by direct occupation, and the rest in virtue of acknowledged overlordship and payment of tribute. Even the seven princes of Cyprus made such submission. One or two strong Syrian towns, Tyre and Jerusalem, for example, withheld payment if no Assyrian army was at hand; but their show of independence was maintained only on sufferance. The Philistine cities, after Sargon's victory over their forces and Egyptian allies at Raphia, in 720, no longer defended their walls, and the Great King's sphere of influence stretched eastward right across the Hamad and southward over north Arabia. Finally, Babylonia was all his own even to the Persian Gulf, the rich merchants supporting him firmly in the interests of their caravan trade, however the priests and the peasantry might murmur. But Elam, whose king and people had carried serious trouble into Assyria itself early in the reign, is hardly to be reckoned to Sargon even as a sphere of influence. The marshes of its south-west, the tropical plains of the centre and the mountains on the east, made it a difficult land for the northern Semites to conquer and hold. Sargon had been wise enough to let it be. Neither so prudent nor so fortunate would be his son and successors.

SECTION 3. THE CONQUEST OF EGYPT

Such was the empire inherited by Sargon's son, Sennacherib. Not content, he would go farther afield to make a conquest which has never remained long in the hands of an Asiatic power. It was not only lust of loot, however, which now urged Assyria towards Egypt. The Great Kings had long found their influence counteracted in southern Syria by that of the Pharaohs. Princes of both Hebrew states, of the Phoenician and the Philistine cities and even of Damascus, had all relied at one time or another on Egypt, and behind their combinations for defence and their individual revolts Assyria had felt the power on the Nile. The latter generally did no more in the event to save its friends than it had done for Israel when Shalmaneser IV beleaguered, and Sargon took and garrisoned, Samaria; but even ignorant hopes and empty promises of help cause constant unrest. Therefore Sennacherib, after drastic chastisement of the southern states in 701 (both Tyre and Jerusalem, however, kept him outside their walls), and a long tussle with Chaldaean Babylon, was impelled to set out in the last year, or last but one, of his reign for Egypt. In southern Palestine he was as successful as before, but, thereafter, some signal disaster befell him. Probably an epidemic pestilence overtook his army when not far across the frontier, and he returned to Assyria only to be murdered.

He bequeathed the venture to the son who, after defeating his parricide brothers, secured his throne and reigned eleven years under a name which it has been agreed to write Esarhaddon. So soon as movements in Urartu and south-western Asia Minor had been suppressed, and, more important, Babylon, which his father had dishonoured, was appeased, Esarhaddon took up the incomplete conquest. Egypt, then in the hands of an alien dynasty from the Upper Nile and divided against itself, gave him little trouble at first. In his second expedition (670) he reached Memphis itself, carried it by assault, and drove the Cushite Tirhakah past Thebes to the Cataracts. The Assyrian proclaimed Egypt his territory and spread the net of Ninevite bureaucracy over it as far south as the Thebaid; but neither he nor his successors cared to assume the style and titles of the Pharaohs, as Persians and Greeks, wiser in their generations, would do later on. Presently trouble at home, excited by a son rebelling after the immemorial practice of the east, recalled Esarhaddon to Assyria; Tirhakah moved up again from the south; the Great King returned to meet him and died on the march.

[Plate 4: ASSYRIAN EMPIRE AT ITS GREATEST EXTENT. EARLY YEARS OF ASHURBANIPAL]

But Memphis was reoccupied by Esarhaddon's successor, and since the latter took and ruined Thebes also, and, after Tirhakah's death, drove the Cushites right out of Egypt, the doubtful credit of spreading the territorial empire of Assyria to the widest limits it ever reached falls to Ashurbanipal. Even Tyre succumbed at last, and he stretched his sphere of influence over Asia Minor to Lydia. First of Assyrian kings he could claim Elam with its capital Susa as his own (after 647), and in the east he professed overlordship over all Media. Mesopotamian arts and letters now reached the highest point at which they had stood since Hammurabi's days, and the fame of the wealth and luxury of "Sardanapal" went out even into the Greek lands. About 660 B.C. Assyria seemed in a fair way to be mistress of the desirable earth.

SECTION 4. DECLINE AND FALL OF ASSYRIA