No, you're not getting the reading comprehension. I stated, WW1, Germans in Moscow? Try that as a question of logistics. Trench warfare and lack of mobility. It took the Germans 3 years to take Poland, barely. The Austrians were on the run as were the Turks. So I hardly doubt, the Germans who were stretched to the breaking point (why the Kaiser gave 50 million deutch mark to Lenin to get Russia out of the war) would have gone very far, especially when at their best they still couldn't take Moscow in WW2 with mechanized warfare.
Read some history yourself. When the Eastern front broke the Germans were gaining ground daily. The Russian Army melted away. The only thing stopping them at that point was how far they could walk and how fast. All that saved Russia was the fact that the Germans wanted to tranfer troops West to try and defeat the Allies.