Serbia and Wallachia were lost to the Empire. The gains in territory exceeded in area the losses. But there can be little doubt that the loss of prestige by the Ottomans from the defeats of their armies by the Austrians under Prince Eugène was not compensated for by victories over the Venetians and Persians, or over the very inferior army of Peter the Great. The first of the wars thus referred to was that with Russia, then under the rule of Peter the Great. He was ambitious of extending his Empire by the acquisition of the Crimea, and of thus getting access to the Black Sea. It was only after the defeat of Charles XII, the King of Sweden, at the battle of Pultowa in 1709, and the consequent conquest of Livonia, that his hands were free for aggression elsewhere. Russia was already in possession of the important fortress of Azoff, on the north-east shore of the sea of that name. The Czar had also fortified Taganrog and other places threatening the Crimea. The Porte was alarmed by these manifest preparations for war. The relations of the two Governments were also embittered by the fact that the Swedish King, Charles XII, after his defeat at Pultowa, sought refuge in Turkey, and that the Sultan accorded a generous hospitality to him, and with great magnanimity refused the demand of Peter for his extradition. It followed that, in 1711, the Porte anticipated the undoubted hostile intention of the Czar, and declared war against Russia. An army was sent by the Sultan across the River Pruth into Moldavia, under command of Grand Vizier Baltadji. This pasha had risen to his post from the humble position of woodcutter at the palace, through the intrigues of his wife, who had been a slave in the Sultan’s harem. The Czar, on his part, had collected his forces in the south of Poland and marched into Moldavia. The two armies met on the River Pruth. The Russian army, already greatly reduced in number by want of food and disease, numbered no more than twenty-four thousand men. The Ottomans, who had been reinforced by a large body of Tartars, under the Khan of the Crimea, were at least five times more numerous. The Czar Peter, unaware that the Ottomans had crossed the Danube, advanced rashly on the right bank of the Pruth, and was posted between that river and an extensive marsh not far from Zurawna. The position was dominated by hills, which the Grand Vizier occupied in force, and his numerous and powerful guns swept the position of the Russians, cut off their access to the river, and completely hemmed them in. Their plight is best described in a letter which the Czar wrote to the Russian Senate at Moscow from his camp at this point:—