The Mithridatic war, which made Rome mistress of Asia in the narrower sense, at once involved her in the affairs of the further East. Tigranes of _Armenia_ had been the chief ally of Mithridates; but, though his power was utterly humbled, no Armenian province was added to the Roman dominion for a long time to come. ♦Province of Syria. B.C. 64.♦ But the remnant of the Seleukid monarchy became the Roman province of _Syria_. As usual, several cities and principalities were allowed to remain in various relations of alliance and dependence on the ruling commonwealth. ♦Palestine.♦ Among these we find _Judæa_ and the rest of _Palestine_, sometimes under a Roman procurator, sometimes united under a single vassal king, sometimes parted out among various kings and tetrarchs, as suited the momentary caprice or policy of Rome. ♦Comparison with British India.♦ In all these various relations between the native states and the ruling city we have a lively foreshadowing of the relations between England and the subject and dependent princes of India. ♦Rome the champion of the West.♦ The conquests of Rome in these regions made her more distinctly than ever the sole representative of the West against the East, and these conquests presently brought her into collision with the one power in the known world which could at all meet her on equal terms. She had stepped into the place of Alexander and Seleukos so far as that all those parts of Alexander’s Asiatic conquests which had received even a varnish of Hellenic culture had become parts of her dominion. ♦Her rivalry with Parthia.♦ The further East beyond the Euphrates was again under the command of a great barbarian power, that of _Parthia_, which had stepped into the place of Persia, as Rome had stepped into the place of Greece and Macedonia. Rome had now again a rival, in a sense from which she had not had a rival since the overthrow of Carthage and Macedonia. One only of the Macedonian kingdoms now remained to be gathered in. ♦Conquest of Egypt. B.C. 31.♦ The annexation of _Egypt_, an annexation made famous by the names of Kleopatra, Antonius, the elder and the younger Cæsar, completed the work. Rome was now fully mistress of her own civilized world. Her dominion took in all the lands round the great inland sea. If, here and there, her formal dominion was broken by a city or principality whose nominal relation was that of alliance, the distinction concerned only the local affairs of that city or principality. ♦_Pax Romana._♦ Within the whole historic world of the three ancient continents, the Roman Peace had begun. Rome had still to wage wars, and even to annex provinces; but those wars and annexations were now done rather to round off and to strengthen the territory which had been already gained, than in the strictest sense to extend it. § 5. _Conquests under the Empire._