Course of the War:
The Russians occupied the Roumanian principalities and crossed the Danube. At first the Turks had considerable successes in the Dobrudja, and the Russians, who suffered enormous losses, were only able to capture Varna. Reserves were brought up during the winter. After fierce resistance the Turks were routed near Shumla. In July 1829 the Russians crossed the Balkans, the fleet co-operated in the Black Sea, and the army began to march on Constantinople. In Asia, Kars and Erzeroum having fallen into the Russian hands, the Sultan yielded.