Our Corporal comes out with a quixotic idea – invade Russia. Actually, he had this idea for a very long time but none took him seriously. Did he check the parity of strength? Did he check the replacement rate parity? Forget whether he checked or not, does he understand what they are? He believes only in the martial prowess of his race – a German is equal to twenty Russians. Meaning,  3 million Germans become equal to 60 million Russians and Russia can never field an army of 60 million. But he forgot one thing. One German bullet kills only one Russian, not twenty. On top of that, the war on other side is still going on.
Then, he names it after Mr. Red Beard without knowing that he died drowning in a puddle of water. Ironically, our Corporal too meets a similar fate.
Where everyone in the world failed, our Corporal decides to finish off the Russians in eight weeks. Three armies march, one to Leningrad, one to Kiev and the third to the lair of the Red Czar. Kiev gives a proof of his 1:20 principle. Excited, he forgets about the Red Czar and tries to capture more Russians. Because of this, the lair of the Red Czar, Moscow came under the Corporal’s fire only by winter. Because he planned to finish off the Red Czar in summer, he didn’t even give his soldiers winter dresses. They had to pass their Christmas shivering and desperately waiting for Santa to gift them some good clothes.
Another problem is, our Corporal is poor in numbers. He doesn’t know that 150 is a smaller number than 1150. Instead of invading Leningrad from Finland, our Corporal sends an invasion force from Poland, which is 1150 km far.
As if this is not sufficient, our Corporal has got a fixation with names. Just skirting and holding them off would have made wonders. But, he wants to take the cities named after the Red Czar and his predecessor and destroy them for good. Pumping in soldiers after soldiers, trying to take a few cities which are now nothing more than a rubble pile ultimately woke the Red Czar up and destroyed our Corporal.
Germany launches Operation Barbarrosa over a stretch nearing 3000 km with more than 3 million soldiers. The superior quality of the German forces push the Russians back that fast that the Russian armies collapse. See the scope of Russian disaster.

Start End Germany Russia
Forces Loses Forces Loses
Battle of Kiev 23-Aug-41 26-Sep-41 5,00,000 1,28,670 8,50,000 7,00,544
Battle of Brody 23-Jun-41 30-Jun-41 750 tanks 300 tanks 3500 tanks 3000 tanks
Battle of Białystok–Minsk 22-Jun-41 03-Jul-41 750000 minimal 675000 417790
Battle of Smolensk 06-Jul-41 05-Aug-41 430000 minimal 581600 300000
Leningrad Strategic Defensive Operation 10-Jul-41 30-Sep-41 517000 60000 725000 345000
Battle of Uman 15-Jul-41 08-Aug-41 400000 20853 300000 203000

But, the reality is that even though Russia lost 700000 in Kiev, the loss of 128000 to Germany was more devastating.

1. Russia’s population and area is way too high for Germany to handle. If a million soldiers are killed, Russia can create 10 million more. But, if Germany loses a million, it can procure a maximum 1.5 million, that too only for a few months. If Germany advances, Russia has got sufficient space to retreat to be out of reach of the Germans.

2. Hitler’s fixation on cities instead of occupying areas destroyed the complete plan. Not fighting for Kiev or Leningrad or Moscow or Stalingrad would have saved much time and resources for the Germans and would have enabled them to reach at least Astrakhan and Nizhny Novgorod in less than eight weeks, going by the fact that they reached Leningrad general area by the end of July itself, in a month of the launch of the invasion.

3. What stopped launching a major invasion through Finland? After all, the Finns are seething due to the loss of Vipuri and the borders are but 150 km from Leningrad. Had an invasion force of a million Germans and the whole Finnish Army invaded, crossing Lagoda and aiming for, say, Kazan, Soviets would be running everywhere trying to understand where to put their forces and what city to save.

4. Had Turkey been made a part of German war machine, an extra invasion through the Caucus aiming at Grozny and Stalingrad would have made the situation more dire for the Soviets. That, besides the Soviets, would have targeted both India and Egypt messing up the Allied war plans like anything.

The ultimate result of this is that Leningrad resisted for two-and-a-half years, locking more than a million of German soldiers without supplies with the Russians winning the round for good. German casualties – 579,895, Russian casualties – 3436066