<Prologue> Finnish military preparedness for war was based on geographical advantage. Although the border with the Soviet Union reached 1000 km, the climate and road conditions were poor, so there were not many areas where a proper attack could be made. Based on this, the Finnish army leadership predicted that around 5 divisions would come to the upper Mannerheim line, that is, to the north of Lake Ladoga. As expected, the Finns had to deal with 3 Soviets per person. However, the number of Soviet troops that actually came to the north of Rado consisted of 12 divisions, more than twice that number
It's winter war but the amount you move around counts too.