On the 8th of March, 1915, General von Gallwitz again tried an offensive with fresh forces which he had gathered. It was thwarted, however, on the 12th, to the north of Przasnysz. The Germans estimated the Russian forces which here were brought up for the counterattack at some ten army corps and seven cavalry divisions. The Russians in advancing this time, instead of directing their thrust at Mlawa, pushed northeastward of Przasnysz along the rivers Orczy and Omulew. In this sector the Germans counted from the 13th to the 23d of March forty-six serious assaults, twenty-five in the daytime and twenty-one at night. With special fury the battles raged in the neighborhood of Jednorozez. This attempt to break into Prussia was also unsuccessful, and in the last week of March the Russian attacks slackened, quiet ensuing for the weeks following Easter.
For six weeks the armies had struggled back and forth in this bloody angle, fighting in cold and wet, amid snow and icy rains. The Germans asserted that in these six weeks the troops of General von Gallwitz had captured 43,000 Russians and slain some 25,000. They estimated the total losses of the enemy in this sector during the period at 100,000. Countless graves scattered about the land, and the ruins of cities and villages were left to keep awake the memory of some of the fiercest fighting of the war in the east.
CHAPTER XL
FIGHTING BEFORE THE NIEMEN AND BOBR—BOMBARDMENT OF OSSOWETZ
The winter battles of the Mazurian Lakes had forced the armies at the northern end of the Russian right flank back into their great fortresses Kovno and Grodno, and behind the line of the Niemen and the Bobr. A great forest region lies to the east and north of Grodno, and between the Niemen and the cities of Augustowo and Suwalki which the Germans, after their successful offensive, used as bases for their operations. A strip of country including these forests, and running parallel to the Niemen was a sort of no-man's land in the spring of 1915. Movements of troops in the heavily wooded country were difficult to observe, and the conditions lent themselves to surprise attacks. This resulted in a warfare of alternate thrusts by Russians and Germans aimed now at this point, now at that, in the disputed territory. Several actions during the spring stand out beyond the rest in importance, both because of the numbers engaged and their effects. In what follows will be described a typical offensive movement in this district undertaken by the Russians, and the way it was met by the Germans.
A new Russian Tenth Army had been organized by the end of February, 1915, with Grodno for its base. General Sievers, his chief of staff, and the general in command of the Third Russian Army Corps had been demoted from their commands, and three new army corps (Two, Three, and Fifteen) had been brought to Grodno. The ranks of the remaining corps that had suffered in the "winter battle" had been filled up with fresh recruits. Hardly had the German pursuit in the forest of Augustowo come to an end when the freshly strengthened Russians moved forward from their defensive lines in a counterattack. The Germans had been engaged in the task of gathering and carting away their enormous booty which lay scattered about the forest. They now drew back from in front of the Russian fortified lines to prepare positions close to Augustowo, and on a line running roughly north and south from this place, with the forest in front of them.
The Third Russian Army Corps advanced from Simno toward Lozdsisjo, their Second Army Corps from Grodno by way of Kopiewo and Sejny toward Krasnopol and other Russian corps advanced through the forest of Augustowo. Here they soon struck strong German resistance, and for several days vainly attacked German fortified positions.
On the 9th of March, 1915, a German offensive began against the Russian Third Corps which held the right wing of the advancing army. When this corps suddenly found itself threatened in the flank from the north and in danger of being surrounded it hastily began to retreat toward the east and southeast, leaving several hundred prisoners and several machine guns in the hands of the Germans. This withdrawal exposed the right flank of the adjoining Second Army Corps, which by this time, March 9, 1915, had reached Berzniki and Giby. The German attack was now continued against this corps. It was cold weather, the thermometer was considerably below the freezing point, and the roads were slippery with ice, so that dozens of horses fell, completely exhausted, and the infantry could march only two or three kilometers an hour.
On March 9 and 10, 1915, the battle flamed up at Sejny and Berzniki, the Russian corps, which had developed its front toward the west, being forced to swing about and face the north, whence the Germans were driving down upon it. At Berzniki two Russian regiments made up entirely of young troops were, according to the German account, completely annihilated, and the commanders of the regiments captured. It seemed as though the leader of the Russian armies saw approaching a repetition of the encircling movements that had proved fatal to the Russians in the Mazurian "winter battle," for on the 10th of March he gave orders for the withdrawal of his entire army. The German airmen on this day reported the Russian columns on the march through the forest in full retreat toward Grodno all along the line from Giby to Sztabiz, far to the south.