It was now the turn of Russia to make a premature advance, and to pay
for it. Doubtless the Grand Duke Nicholas, whose strategy up to this
point had been so admirable, knew very well the danger of a new advance
in Galicia, but he realized the immense political as well as military
advantages which were to be obtained by the capture of Cracow. He
therefore attempted to move an army through Poland as well as through
Galicia, hoping that the army in Poland would keep von Hindenburg busy,
while the Galician army would deal with Cracow.

The advance was slow on account of the damaged Polish roads. It was
preceded by a cavalry screen which moved with more speed. On November
10th, the vanguard crossed the Posen frontier and cut the railway on the
Cracow-Posen line. This reconnaissance convinced the Russian general
that the German army did not propose to make a general stand, and it
seemed to him that if he struck strongly with his center along the
Warta, he might destroy the left flank of the German southern army,
while his own left flank was assaulting Cracow. He believed that even if
his attack upon the Warta failed, the Russian center could at any
rate prevent the enemy from interfering with the attack further south
upon Cracow.

[Illustration: GERMAN FRIGHTFULNESS FROM THE AIR

A gas attack on the eastern front photographed by a Russian airman.]

The movement therefore began, and by November 12th, the Russian cavalry
had taken Miechow on the German frontier, about twenty miles north of
Cracow. Its main forces were still eighty miles to the east. About this
time Grand Duke Nicholas perceived that von Hindenburg was preparing a
counter stroke. He had retreated north, and then, by means of his