During the First battle of Przasnysz and Łomża's operation, the last section of the Russian-German front between the Vistula and Bobr rivers turned into a continuous defensive line fortified by both sides. Both opponents subsequently devoted several months (from April to mid-July) to the creation of new defensive zones in the depths of their positions and to find, as far as possible, weak points in each other's defenses. The German command failed to develop the success of the Second Battle of the Masurian Lakes, especially in the face of limited replenishment of personnel and ammunition, which forced the chief of staff of the Supreme Commander of All German Forces in the East, Lieutenant General E. Ludendorff, to talk about the "collapse of hopes." The Russian command - from Supreme Command to the headquarters of the armies of the North-Western Front - also failed to solve the intended tasks, namely, to capture East Prussia. It was also not possible to push the enemy back from the territory of the Russian Empire, despite the constantly maintained superiority in forces.Вооруженные силы России в Первой мировой войне (1914-1917), 2014, volume 2. p. 41
