We have been swept by a destructive cold wave in front of Moscow. It is impossible to capture Moscow now. What is worse, Siberian Troops have mounted a counteroffensive and are poised to cut off your retreat. You'll have to escape from encirclement. 

You must make a detour through south or southwest of Tula and recapture ONE supply point out of three as a way of escape. I'm sorry, we can't supply for you. Good luck.
