The battle of Krasnik was regarded by the Russians as an effective victory, for it seemed to have halted the advance on Lublin. The army of Von Mackensen had now also come to a stop about halfway between Zamosc and Krasnostav, an artillery duel on July 7, 1915, being the last activity noted on the front of this army for some time. Their comparative quiet in the region between the Vistula and the Bug where the main advance of the Teutonic forces on the south had been under way with great vigor for several weeks until the check at Krasnik was not interrupted until July 16, 1915. Day after day the Teutonic headquarters reported "nothing of importance" in this quarter. When the quiet was finally broken it appeared that it had been the lull before the storm. Before taking up again the activities on this section of the front, it will be necessary to take a glance toward the northern half of the great arc that enveloped the Warsaw salient on two sides. In these early days of July, 1915, considerable uncertainty prevailed among those who were watching the progress of the campaign in Poland as to where the heaviest blow of the Teutons would fall, whether from the south or the north. The decisive stroke came with lightning suddenness. A tremendous attack was launched in the direction of the Narew by the army of General von Gallwitz. A laconic announcement of the German General Staff on July 14, 1915, bore momentous news, although its modest wording scarcely betrayed the facts. It read: "Between the Niemen and the Vistula, in the region of Walwarga, southwest of Kolno, near Przasnysz and south of Mlawa, our troops have achieved some local successes." The Russian report referring to the beginning of the same action was equally noncommittal, though possibly more misleading. This states: "Considerable enemy forces between the Orczy and the Lidynja adopted the offensive and the Russians declining a decisive engagement retreated during the night of the 13th to the second line of their positions."