Lenin’s Bolsheviks pull Russia out of the Great with the Brest Litovsk Treaty, but the Imperial German Army keeps advancing towards Petrograd, because there is no Russia army to stop them. Lenin orders a retreat to Russia’s ancient capital, Moscow. Meanwhile, Stalin is given the task of feeding Petrograd and Moscow and will do anything to succeed, to further make Trotsky look weak.
Soviet Gen. Kirponos does reasonably well in defending his SW Front, when he is told what is going on. But that is irregular at best. Soon, Lvov falls and all know that the next major battle will take place along the Stalin Line.