What helped stop the German advancement into the Soviet union?

Answer 1

The major factor for the faltering of the German advance would be the lack of supplies and winter gear due to the German's long supply lines. Another would be the "tenacity" of the Russian defenders and by "tenacity" I mean the use of human wave tactics and snipers.

Answer 2

25 Kilometers to Moscow.

The Wehrmacht's advance into the heart of the Soviet Union was first delayed by the Russian Winter and then checked by fresh troops brought from Siberia and the Eastern Provinces.

Answer 3

A horrifically horrible Winter; and, an unimagined tenacity and stubbornness of the soviet army.

Answer 4

the siberian units that were deployed in defence of moscow halted the german advance. That coupled with russian armour and russian winter stopped the german advance into the USSR

Answer 5

the Russians and the Russian winter

Answer 6

The terrible winter of 1941-42.