In the year 1736 the differences between the Czarina Anne and her hereditary enemy the Grand Seignior, came to a crisis; and she declared war, in consequence of the provoking outrages of the Tartars of the Crimea, and the neglect of the Sultan to her repeated remonstrances on that subject; and the Emperor of Austria concerted with her the plan of the new campaign against Turkey. It was agreed that a Russian army, under General Lacy (or Lasci, as it is often spelt), should march against the city of Azoph; that another Russian army, commanded by the Count de Munich, should penetrate to the Ukraine; while the Austrians, under Count Seckendorf, should prepare to assault Widin, in Servia; and all these armies marched accordingly.

The Khan of the Crimea was, in those days, a powerful prince, who paid tribute to the Sultan, though he was styled Emperor by his Tartar subjects, and, being descended of the Ottoman blood, had a claim to the Turkish throne, on the extinction of the race of Achmet III. The sultans had the power of deposing them, and, being jealous of their rank and authority, allowed few of them to die at liberty. Thus most of the Khans of the Crimea have ended their lives in chains in the dungeons of Rhodez. Among his own people the khan could then, at any time, command an army of eighty or a hundred thousand men; but darts, arrows, and spears, with a few muskets, were their weapons, with wooden saddles and stirrups. His revenues were, the tenth of all captives, a black mail paid by the Poles and Muscovites, and twenty cart-loads of honey from the Moldavians. He had vast flocks, coined copper money, and maintained a guard of Janissaries, who bore his green and purple standard. The Crimea then contained several great cities, and, besides many noble monuments of the Genoese, was covered by the ruins of the Grecian age and power.

Lacy came in sight of Azoph in March, 1736. It stands on the left bank of the most southern branch of the Don, in a district full of dangerous swamps, and on an eminence, the only spot capable of bearing buildings in that bleak and barren district. The city was then of a square form, situated at the foot of an acclivity, and having a castle of great strength. Lacy attacked both town and castle with great vigour; and though assailed by incessant showers of bullets, arrows, darts, stones, and other missiles, shot by its strong garrison of Tartars and Turks, he took it by storm, after a twelve days' siege, and completely reduced it.

Field-Marshal Count Munich, with 100,000 men, was equally successful elsewhere.

Lacy next forced the far-famed lines of Perekop, which, till then, had been considered impregnable. They extended across the Isthmus, from the Euxine to the Palus Mæotis, and had been the labour of 5000 men for many years. The great ditch (from whence we have the name of Perecopz) was seventy-two feet broad by forty-two feet deep, and the rampart was seventy feet in height, from its base to the cope of the parapet. The town was defended by a castle, the residence of the Aga of the Guards upon the Don and Dnieper, and by six great towers mounted with cannon; but the whole of these ample fortifications were manned by an army which made the most pitiful resistance; for this Irish soldier of fortune forced them, sword in hand, at the head of his troops, cut to pieces all who resisted, and hewed a passage into the peninsula.

He took Bakhtchissari, which lies within twenty-two miles of Sebastopol. It then contained about 4000 houses, a mosque with a fine palace, and many stately tombs where the khans were buried. Around it were baths, gardens, and orchards; and near it, in the narrow valley, there still stands the now deserted mausoleum of a famous Georgian beauty, who was the chief wife of the Khan Khareem Gheraee.

While Munich was marching towards Bessarabia, Lacy overran the whole Crimea, and ravaged the country with fire and sword, up to the northern slopes of the Tauric mountains; but being foiled before Kaffa (on the sea shore), which was defended by strong walls, two castles, and a garrison under a bashaw, he was compelled, by the approach of winter, to retreat, after subjugating the whole country, and defeating more than 20,000 Tartars in one pitched battle.

"General Lacy," says Smollett, "routed the Tartars of the Crimea; but they returned in greater numbers, and harassed his Muscovites in such a manner, by intercepting their provisions and destroying the country, that he was obliged to abandon the lines of Perekop." The great Field-Marshal, Baron Loudon (descended from an Ayrshire family), served in this war, under Lacy, as a subaltern officer. Among the Scottish volunteers who also served there, were Colonel Johnstone; the gallant General Leslie, who, with all his soldiers, was destroyed on the Steppe by the Tartars; and General Balmaine, who stormed Kaffa.

After these triumphant operations, Lacy entered the Ukraine, joined Marshal Munich, and together, in 1737, they laid siege to Oczakow, at the mouth of the Borysthenes.

Oczakow, or Dziar Cremenda, had then about 5000 houses, a mosque, a palace, with a number of tombs of the Crimean khans, which stood among their gardens and orchards. It had a castle, built by Vitolaus, Duke of Lithuania, and therein a Turkish garrison had been established since 1644. Munich and Lacy assailed the town and castle on the landward side; but towards the sea they were attacked by the cannon of eighteen galleys. The Muscovites carried all their approaches with such impetuosity and perseverance, that, in a few days, the Turks and Tartars became filled with terror.