In Asia the Turks had not done so well. General Paskiewich was able to defeat the army in front of him and to capture the important stronghold of Kars and its adjoining district.

The campaign of 1829 began late. It was not till the middle of May that the Russian army again took the field, not on this occasion under the Czar, but under General Diebitsch, who proved to be a most able general and diplomatist. The army was again most inadequate for the campaign which was in contemplation—namely, the crossing of the Balkans and an advance to Constantinople. It consisted of no more than sixty-eight thousand men, a force which, in these days, eighty-eight years later, would count for little or nothing. It was thought necessary, as a condition precedent to any advance, to capture Silistria. The siege was commenced on May 17, 1829. The Russian force detailed for this was not more than fourteen thousand men. The Turks who defended it were twenty-one thousand in number, including eight thousand armed inhabitants. In spite of this disparity of numbers, the town was captured after a siege of forty-four days, on July 26th, at a loss to the Russians of two thousand five hundred men.

In the meantime Diebitsch had advanced with the main army in the direction of Schumla. Reschid Pasha, who had replaced Hussein Pasha as Grand Vizier and Seraskier, issued from Schumla with forty thousand men, and on June 18th a great battle took place at Kulewtska. The Turks were utterly defeated by a very inferior force of Russians. They had begun the battle with an impetuous charge, but they could not sustain it against the serried ranks of the Russian veterans. Some ammunition wagons exploded and, as often happened with the Turks, a wild panic ensued. They fled from the field of battle and dispersed in all directions. All their artillery fell into the hands of the Russians. Reschid escaped at the head of six hundred men and found his way to Schumla, where there were ten thousand Turks, and where a large number of fugitives from the battle eventually found refuge. This victory at Kulewtska had far-reaching effects. It was the first great battle in which the new troops of Mahmoud were tested. It showed that the Russian soldiers had an overwhelming superiority.

Silistria fell on July 13th. The Russians who had been engaged in the siege then joined Diebitsch before Schumla. The general thereupon decided on the bold and even perilous course of crossing the Balkans, without previously capturing Schumla and its army. Leaving ten thousand men to mask that fortress, where a much greater force of Turks was now assembled, consisting largely of men demoralized by the recent defeat, Diebitsch commenced his march with such secrecy that for some days the Turks were not aware of it. Reschid Pasha, expecting an attack on Schumla, and thinking his force insufficient for its defence, had called in the various corps who were posted for the defence of the mountain passes. Diebitsch therefore met with no opposition. He crossed the mountains in nine days of forced marches fraught with great hardship to his troops. When south of the mountain range, he deflected his route to the Black Sea and got into communication with the Russian fleet, under Admiral Greig, which assisted in the capture of Bourgas and other ports along the coast, and afforded supplies to Diebitsch’s army.

Three battles were fought south of the mountains, at Aidos, Karnabad and Slivno, where small divisions of Turks were defeated and dispersed. After three weeks from crossing the Balkans, Diebitsch arrived in front of Adrianople, a city of eighty thousand inhabitants, with a garrison of ten thousand men. His army was by this time reduced to less than twenty thousand men. Its appearance before Adrianople caused wild panic. Never before had a hostile army crossed the southern range of the Balkans. It was thought to be impossible. It was confidently believed that the Russian army numbered over one hundred thousand men. The city and its garrison surrendered without making a show of fight. Everywhere on its route through Bulgaria the Christian raya population had received the invaders with acclamation and the Turks had thrown away their arms and fled. The campaign of 1829 in Asia had been almost equally disastrous to the Turks. Paskiewich had defeated them in a pitched battle and had captured Erzerum. He was now approaching Trebizond, after dispersing an army on the way.

When news reached Constantinople of the crossing of the Balkans and the capture of Adrianople, there was consternation and dismay among Turks of all classes. The Sultan almost alone maintained his presence of mind. He issued a proclamation calling on all the Turks in the city to join in its defence. He announced his intention to take command in person. The sacred banner of the Prophet was unfurled. But when, at the first review of the forces, the Sultan appeared in a carriage and not on horseback, this “unheard of and indecorous innovation” chilled the enthusiasm of the volunteers, and undid the good which was expected from his action.

There was no great zeal for the defence of the capital. The chief ministers of the Porte were unanimous in advising the Sultan to sue for terms of peace. They were quite ignorant of the weakness of the Russian army. They believed the stories that more than a hundred thousand men were advancing on the capital. There were no troops at Constantinople, they said, able to meet this army. The ambassadors of England and France, who had recently returned to Constantinople, at the invitation of the Sultan, backed up the ministers, and urgently advised him to come to terms with the enemy. We now know that all this advice and these alarms were founded on false information and that there was no real justification for them. In fact, the real position of the Russian army was one of extreme danger. It had suffered great losses on the battlefields and from the hardships of the forced marches, and was also being decimated by disease. There was no possibility of its being reinforced. Retreat across the Balkans was almost impossible. The Turkish army at Schumla was now reinforced. On its flank there was an army of twenty thousand Albanians, under the rebellious Pasha of Scotra, who had refused aid to the Porte in the earlier part of the campaign, but who, now that the existence of the Empire was threatened, might confidently be expected to come to its aid. Advance to Constantinople might also be dangerous, if not impossible. It was distant one hundred and forty miles. Its garrison of thirty thousand men, supplemented by fresh volunteers, might be relied on to meet the Russians, now reduced to much less than twenty thousand. These difficulties of the Russian army, however, were not known to the Porte.

In view of the strong pressure brought to bear upon him, the Sultan, for once in his life, gave way, and agreed to send plenipotentiaries to Adrianople to discuss terms of peace. Diebitsch well knew the danger of his position, and was anxious to make peace, but he maintained an attitude of firmness and confidence. He was ready, he said, to discuss terms, but he was equally willing to advance with his army against the capital. Already a part of his army was pressed forward. It occupied a line from the Black Sea at Kilia to Enos in the archipelago—a distance of over one hundred miles, much too long for his weak force. It is recognized by Moltke and all military authorities that if the Porte had stood firm and had refused to agree to terms, Diebitsch could not have made good his threatened attack on the capital. In the history of war there has never been a more successful case of ‘bluff.’ The Porte gave in to unreasoning and ill-informed fear, and on September 19th peace was concluded between the two Powers and the treaty of Adrianople was signed.

It is certain [said Moltke] that this treaty released Diebitsch from a position as perilous as could well be conceived, and which, if prolonged for a few more days, might have caused him to be hurled down from the summit of victory to the lowest depth of ruin and destruction.[33]

The terms of peace agreed to were moderate, so far as Russia itself was concerned, though very serious in their effect on the Ottoman Empire. The Czar had proclaimed at the outset of the war that he had no desire for territorial aggrandizement. He fully adhered to this promise. With two comparatively small exceptions, Russia gave up all the territory which it had conquered in the war, both in Europe and Asia. It retained only a small part of Moldavia which gave access to the Sulina mouth of the Danube, a position of great importance to it in the future. In Asia, Kars and Erzerum were given back to Turkey. In Europe, the Pruth continued to be the boundary of the two States. But Moldavia and Wallachia, though nominally restored to the Ottoman Empire, were practically freed from it. They were to enjoy complete autonomy. The Hospodars, in future, were to be appointed for life. The two States were to be allowed to raise armies independent of the Porte. The tribute payable in future was to be fixed, and could not be increased. Religious and commercial freedom were to be secured to them. The Sultan was to be their suzerain and nothing more. This meant practical independence. The same privileges were secured for Serbia, with the exception that the Porte was to be permitted to garrison the fortresses of Belgrade and Orsova. The Turks were required to depart from all other parts of the country. Silistria was to be returned to Turkey, but other fortresses on the Danube were to be razed. That river, therefore, ceased to be the first defence of the Turkish Empire to the north. An indemnity of eleven and a half million ducats, equal to five millions sterling, was to be paid by Turkey for the expenses of Russia in the war. The payment was to be spread over ten years, and the territory occupied by Russia was not to be wholly surrendered till this was effected.