The best-quality army is not necessarily the one with the most combat power, which is a function or quality, size, firepower, and no doubt other factors. The German army was very adaptable. For example, the Germans in Finland were clumsy in arctic conditions when compared with the Finns in 1941, but adapted very quickly until their capabilities were equal or superior. The Finns had the best defensive terrain in Europe, the best weather for conducting defensive operations, and a particularly inept opponent in 1939, so their performance probably appears cast in a somewhat rosy light. The Russians had one railway running up to Murmansk, and very poor lateral communications with the Finnish border, so their tactical problems were compounded by logistical ones. It can hardly be compared to the route from the German border to Brussels, which was over generally flat plains, and well supplied with metalled roads and railways. Also very quick to adapt were the Americans, who developed very dramatically in their capacities for armoured warfare from Kasserine Pass onwards. The much-decried Italians also performed well under Rommel's leadership, although it is hard to compare them to their German allies or British opponents because of their execrable equipment. It must however take more bravery to stand one's ground in an M13/40 than a Tiger 1, and that is what the Ariete division usually did.