Warfare History Network
From Leningrad to Murmansk, columns of Soviet Red Army troops stormed down roads and trails into Finland’s dense forests, lakes, and swamps, seeking to cut Finland in half.
Soviet Union Communist Party General Secretary Josef Stalin—known simply as the “Vozhd” or “Boss” to his inner circle—had ordered his massive armies to invade Finland, a blatant act of aggression, in 1939, a year of aggression. His massive armies, lavishly equipped with tanks, guns, and aircraft, easily outnumbered the Finns, and Stalin expected that he would carve out a land barrier between Leningrad, Russia’s “Window on the West,” and his supposed ally, Nazi Germany.
http://nationalinterest.org/blog/the-buzz/battle-the-winter-war-had-far-reaching-consequences-russia%E2%80%94-23000