Far in the northeast in Courland the army of General von Bülow, on July 17, 1915, defeated Russian forces that had been rushed up at Alt-Auz, taking 3,620 prisoners, six cannon and three machine guns, and pursuing the Slavs in an easterly direction. Desperate fighting was also taking place to the northeast of Kurschany.
Notes of anxiety mixed with consoling speculations had begun to appear in the press of the allied countries when the vast German offensive had thus become plainly revealed and had demonstrated its driving force. A Petrograd dispatch to the London "Morning Post" on the 15th of July, 1915, said of the German plan that it was to catch the Russian armies like a nut between nut crackers, that the two fronts moving up from north and south were intended to meet on another and grind everything between them to powder. The area between the attacking forces was some eighty miles in extent, north to south, by 120 miles west to east. The writer offered the consolation that this space was well fortified, the kernel of the nut "sound and healthy, being formed of the Russian armies, inspired not merely with the righteousness of their cause, but the fullest confidence in themselves and absolute devotion to the proved genius of their commander in chief."
The dispatch pointed out that it was all sheer frontal fighting, that the Germans had been twelve months trying frontal attacks against Warsaw on a comparatively narrow front and in vain. What chance had they, he added, "of success by dividing their forces against the united strength of Russia." This sort of argument is typical of the endeavor to sustain the hopes of Russia's friends during these days. Doubts, however, began to creep in more strongly as to the possibility of holding Warsaw.
In Berlin the announcement of the Teutonic victories that began with the successful assault at Przasnysz was received with general rejoicing, and the appearance of flags all over the city. The Russian retreat toward the Narew River in particular was regarded by the military critics as threatening momentarily to crumble up the right flank of the positions of the Russians before the capital of Poland.
German Attempts to reach Warsaw in 1914.
Cholm and Lublin on the southern line of communication of the Russian armies were now in imminent danger. On July 19, 1915, came the announcement that the troops under Field Marshal von Mackensen, which had pierced the Russian line in the region of Pilaskowice and Krasnostav, had increased their successes, and that the Russians were making the most desperate effort to prevent complete defeat. All day the battle had swayed in a fierce struggle for mastery. The Russians threw a fresh division of the Guards into the fight, but this too had to yield to the overwhelming force of the Teuton onslaught. Farther to the east as far as the neighborhood of Grabowiec, Austro-Hungarian and German troops forced the crossing of the Wolica, and near Sokal in Galicia Austro-Hungarian troops crossed the Bug. (See Austro-Russian Campaign.) In consequence of these Teuton successes the Russians on the night of the 18th to the 19th of July retreated along the whole front between the Vistula and the Bug—practically the last line of defense, for the Warsaw-Kiev railway had been broken down. The German troops and the corps under the command of Field Marshal von Arz alone from the 15th to the 18th of July, 1915, took 16,250 prisoners and 23 machine guns.
It was announced by the Germans that according to written orders captured during this action the Russian leaders had resolved to hold the positions here conquered by the Germans to the utmost, regardless of losses.
The same day that brought the report of this Russian retreat on the south brought the news that in the adjoining sector to the west of the Upper Vistula the army of General von Woyrsch had met resistance from the Russians behind the Ilzanka after the Russian defeat on July 13, 1915, that, however, Silesian Landwehr on the 18th had captured the Russian defenses at Ciepilovo by storm, and that the Russian line at Kasonow and Barenow was beginning to yield. The army of General von Gallwitz had now taken up positions along the whole Narew line from southwest of Ostrolenka to Novo Georgievsk. The Russians, however, as already indicated, were still holding fortified places and bridgeheads on the right bank of the river. In this sector the number of prisoners taken by the Germans had risen to 101 officers and 28,760 men.