Then on the last day of the month came the announcement from Bucharest that Russian forces had arrived on Rumanian soil and were already crossing the Danube over into Dobrudja, their left wing on the Black Sea coast being protected by ships of the Russian fleet. The commander of this force was General Zaionchovsky, who, together with his staff, had been welcomed in Bucharest by a throng of the enthusiastic inhabitants, women and children hurling bouquets of flowers on the Russians as they passed through the streets. Another peculiar feature of this event was the organization of a brigade of Serbians, interned soldiers who had escaped into Rumanian territory during the invasion of their country the year previously. These now became a part of the Russian contingent. Meanwhile in the north the Rumanians and the Russians had also joined forces, and on August 29, 1916, Berlin officially announced that the German-Austrian forces in that section had been attacked by the Russo-Rumanians in the Carpathians. On the Danube the Austrian river fleet showed some activity. A monitor shelled Varciorova, Turnu Severin, and Giurgevo, situated on the Rumanian bank, and some small craft were captured at Zimnita. On the other hand, the Rumanians were reported to have begun a general bombardment of Rustchuk, an important Bulgarian port on the river. And on the night of the 28th the fact that the nation was at war was brought home to the citizens of the capital by an aeroplane and a Zeppelin, which sailed over the city dropping bombs, but doing very little harm. During the following month such raids were to be almost daily occurrences, and many were the women and children killed by the bombs hurled down from above. On the 1st of September, 1916, came the announcement of a really striking victory for the Rumanians: Orsova, where heavy fighting had been raging since the first hour of the war and in which the Austrians were daily claiming success, was finally taken. Here the Austrians held a strong position, against which the Rumanians had hurled one assault after another, until they succeeded in taking two heights overlooking the town, each over a thousand feet high and thus forced the defeated enemy over the Cserna River, a northern branch of the Danube. This success caused some sensation, for now it appeared that the way was opening for an offensive across the southern portion of Hungary which should sever the Teutons and the Magyars from their Bulgarian and Turkish allies.