Meretskov’s revised battle plan, delivered on October 29, 1939, dutifully slashed the number of Soviet forces necessary, while calling for an attack at widely separated points across the entire 800-mile border—the wide-front approach of the Russian civil war, two decades earlier. Just 12 divisions would strike at an equal number of different points. Stalin chose not to have the Main Military Council discuss the new plan. He had Shaposhnikov sent on holiday to Sochi.134
Thanks to Stalin’s shift of the economy to wartime production and his personal attention to military factories, the Soviet Union was armed to the teeth. In 1939, the armaments commissariat had been expanded into four, for armaments, ammunition, aircraft, and shipbuilding. The Finns, however, had built a series of defense belts, known as the Mannerheim Line (for their commander in chief), made up of reinforced concrete emplacements two stories high and topped by armor-plated roofs. Although many of the pillboxes and bunkers were too old to withstand modern shell fire, some were sturdy, and there were antitank traps, log barriers, ditches, and minefields. Beyond the line, primitive traps (boulders, barbed wire strung across sticks) were laid. The Finns also glued portraits of Stalin onto structures, making Red Army troops hesitate before firing. Above all, the line was complemented by marshy forest, countless lakes, and other natural obstacles, which constituted a key reason the war had been started in the dead of winter: the frozen watery wastes would presumably allow tanks and wheeled artillery to cross. But in such unsuitable terrain, Soviet mechanized units attempted a German-style war of maneuver.
Without sufficient room to maneuver its heavy forces or bring its superior firepower to bear, the Red Army saw entire divisions sliced to pieces (or frozen to death). Moreover, in trying to race ahead in simple frontal assaults without accompanying infantry, the Red Army exposed its tanks to ad hoc attacks by flammable liquids stuffed in bottles and ignited by hand-lit wicks, first used in the Spanish civil war and now christened “Molotov cocktails.” (“I never knew a tank could burn for quite that long,” remarked one Finn.) Furthermore, the north’s long winter darkness blunted the advantages of Soviet air power. Back on November 19, eleven days before launch, when Meretskov had toured the region to fix deployment problems, his staff car had become stuck in the deep snow, leading him to conclude that “it would be very difficult to conduct military operations in this region.”135 The 1939–40 winter turned out to be especially cold: a site on the Karelian Isthmus recorded a record low of 45 degrees below zero (minus 43 Celsius).136 The Red Army suffered from pervasive frostbite. Neither the climate nor the terrain should have been a surprise.
Finland showed tactical superiority. Dark silhouettes of Red Army soldiers stood out against the white snow, even if they had not lit fires to try to warm themselves, but the Finns adapted to the subarctic wilderness by donning camouflage whites, using mobile troops on skis, and carrying submachine guns to strike at the Soviet flanks or rear, in asymmetric warfare. The Finns called this tactic
In the censored Soviet public sphere, the information about the hostilities was miserly and distorted.
MISCALCULATION EXPOSED