Russia's entry into the war was a bolt from the blue for Poland.
The Polish Army could not even resist the German Army. It was even less capable of diverting part of its forces to defend the Eastern Front battlefield while resisting the German Army.
What was more, the Russian Army possessed one tradition Poland could never match: sheer numbers.
Even in peacetime, the Russian Army maintained a strength in the millions. This was one of the reasons other countries were so wary of Russia.
After Russia entered the war, it was bound to carry out partial mobilization. Though it was only partial mobilization, the number of new recruits called up would still start at a million.
That meant Russia could field more than two million troops at any time—almost twice the size of Poland's current army.
Germany alone had already been enough to give anyone a headache. With Russia added to the list of enemies, the Polish Government fell into temporary collapse, while the peace faction that had originally hidden in the shadows began to show itself.
Faced with such a desperate situation, the Polish Government understood that Poland alone could no longer change its fate of imminent destruction.
To save Poland, its only hope now was to pray that Britain and France would intervene in the war, preserving at least some of Poland's territory instead of allowing Germany and Russia to carve it up between themselves as they had before.
But that hope was exceedingly slim. Germany's military strength was already formidable, and with Russia added to the equation, would Britain and France really be willing to offend both countries for Poland's sake?
As it turned out, Britain and France were not willing to offend two great powers, Germany and Russia, for the sake of Poland alone.
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