First of all, please forgive my poor english. Infact this is one of the dificulties about this game, we dont have translation in Portuguese, so the rules are somewhat in a kind of fog, eheheeh. But... I think that I'm starting to do somethig valuable to win the game. First of all, I never dispend much time or forces conquesting Norway or Greece. Forget about it. Investing in technological research and air force with the benefits entering in "bank" after the fall of Lower Countries, France and Yugoslavia. Conquestin Belgrad in the first turn of the attack and declaring war to Russia when soviets are 80% prepared. I tried successfully an anfibious attack , joining the finish in the northern front. Everything it's much easier after this. The attack on UssR coming from Turkey it's very possible, but... these mountains! Such a long time and risks. Meanwhile, generally I just leave 4 army corps in France, gradually (depending on the russian campaign) reforcing with other units.