[Homer_J_Simpson]

Note the road network behind the Finnish positions, and the lack of good roads behind the Soviets at the Mannerheim Line.

I don't know - It looks to me like the Russians have as least as many roads available as the Finns do. What am I missing?

[tcrlaf]

What am I missing?

Most of the Soviet Units involved in the opening stages of the War were motorized, and given the best equipment the Soviets had. They were forced to stick to the few roads available, while the Finns didn’t have to, and detachments were easily surrounded and destroyed.

Also, Stalin’s murderous purge of the Officer Corps will show it’s cost here, with leadership among the assault units “lacking”, to say the least.