Chapter 2: The Winter War
The Soviets considered the Finnish border, which ran just 30-40 kilometers northwest of the important Russian city of Leningrad, to be a grave threat to their national security. For quite some time, Russian negotiators had been attempting to reach an agreement with the Finns to have the border near Leningrad pushed back a few dozen kilometers. In exchange for this concession, the Finns would receive a much larger area of further north. The Soviets also demanded a lease on the port Hango on the north side of the Gulf of Finland as they wanted to obtain complete control over this important waterway.
These negotiations continued for several months until on 26 November 1939 a border incident occurred. The Russians claimed that the Finns had shelled the Soviet border and had killed several Red Army soldiers. Of course, the Finnish Government denied this. In response, the Russians demanded that the Finnish Army withdraw a couple dozen kilometers back from the border, but the Finns refused to comply.
Thus, on 29 November 1939, Soviet Foreign Minister Molotov sent a note to the Finnish Minister in Moscow, Irje Kosinen, in which he declared:
“Having refused to withdraw their troops from the Soviet border by even twenty or twenty-five kilometers after the wicked shelling of Soviet troops by Finnish troops, the Government of Finland has shown that it continues to maintain a hostile attitude to the Soviet Union. Since it has violated the non-aggression pact [with the Soviet Union] … we now also consider ourselves free of the obligations arising from this pact.”
And, thus, in late November 1939 the Soviet Union went to war with Finland in what history would come to know as the Winter War. Clashes with Finnish troops were soon reported in newspapers across the Soviet Union and a full-scale war was on.
If you recall, Finland was assigned to the Soviet sphere of influence per the Molotov-Ribbentrop Pact signed in August 1939. Nevertheless, this was yet another break in Soviet policy from the Western democracies. World opinion largely supported the Finnish cause and viewed the Soviet Union as the aggressor. Foreign volunteers poured in from across the world to fight for Finland. Britain and France strongly considered sending their own troops in to fight on the Finnish side, but never carried through with it and the war ended before anything was done. Nevertheless, the Soviet Union was expelled from the League of Nations on 14 December 1939.
By almost all accounts, the Soviet Union should have rolled over Finland, with its exponentially larger population and industrial base. We will not go very much into depth about the Winter War here as it is really not what this volume is centered on, but it is important to realize the Winter War’s future implications and the weaknesses of the Red Army that were exposed during the conflict. After all, Finland did invade the Soviet Union on 25 June 1941 to reclaim these lost lands (and more) in what is now known as the Continuation War. The Red Army’s weakness during the Winter War of 1939-1940 certainly emboldened the Finns in this decision.
Soviet bombers over Helsinki, Finland on 30 November 1939.
The decisive theater in the Winter War was just north of Leningrad on the Karelian Isthmus. There sat the famed Mannerheim Line. Though not quite complete or nearly as impressive as the French Maginot Line, it was an impressive series of concrete and steel bunkers, barbed wire, fallen trees, strategically placed boulders, and various natural barriers. Built in two phases, from 1920-1924 and 1932-1939, it would prove to be a formidable task for the Red Army to penetrate.
A portion of the Mannerheim Line.
After some brief fighting south of the Mannerheim Line on the Karelian Isthmus in late November and early December as Finnish troops executed a planned retreat northward from the border to more defensive positions, Soviet troops began to reach the bunkers and fortresses en mass by 7 December. Thereafter, Soviet forces began to enter the meat-grinder.
Further north, in mid-December, a single Finnish regiment and several battalions consisting of approximately 4,000 men routed two full Soviet infantry divisions (20,000) men in the Battle of Tolvajärvi. Finnish casualties were less than 500 while Soviet losses totaled near 10,000 men and dozens of armored vehicles lost.
A Finnish machine gun crew during the Winter War.
Several more Soviet unmitigated disasters occurred during January as the dead of winter set in. The Finns were dug in well and the cold, stormy weather only further worked in their favor as they were squarely on the defensive. Two Soviet offenses in early January 1940 were crushed as the Red Army was routed in the Battles of Raat Road and Suomussalmi. Finnish knowledge of their local terrain certainly played a role as did the morale of the Finnish soldiers as they protected their homes, villages, and towns.
Finnish ski troops in northern Finland.
The Finns also used improvised devices nicknamed “Molotov Cocktails”, aptly named for Soviet Foreign Minister Molotov. The fuel for these devices was refined to a slightly sticky mixture of gasoline, kerosene, tar, and potassium chlorate which was poured into a bottle. Finnish troops would light these afire and hurl them at incoming Soviet tanks at close range.
A report by the British War Office in June 1940 noted:
“The Finns' policy was to allow the Russian tanks to penetrate their defenses, even inducing them to do so by 'canalizing' them through gaps and concentrating their small arms fire on the infantry following them. The tanks that penetrated were taken on by gun fire in the open and by small parties of men armed with explosive charges and petrol bombs in the forests and villages... The essence of the policy was the separation of the AFVs from the infantry, as once on their own the tank has many blind spots and once brought to a stop can be disposed of at leisure.”
A Finnish Molotov Cocktail.
It wasn’t until early February that, after several disastrous defeats, the Red Army finally began to take the initiative again as they launched an all-out offensive against the Mannerheim Line on 1 February. By 11 February, Soviet troops had breached the Finnish fortifications and Finnish troops were squarely on the retreat.
By early March, after breaching the Mannerheim Line, the Red Army had occupied most of the Karelian Isthmus and the Finnish government began to try to negotiate a peace treaty. On 12 March 1940, the Finnish and Soviet Governments signed the Moscow Peace Treaty. It signaled an end to the 105-day conflict between Finland and the Soviet Union. A ceasefire was declared effective at noon local time on 13 March and the war was over. The treaty was ratified on 21 March 1940.
Situation along the Karelian Front at the time of the ceasefire.
By the terms of the treaty, the Finns had to surrender almost all of the heavily-industrialized region of Finnish Karelia to the Soviet Union. Finland also had to cede the Salla area, the Kalastajansaarento Peninsula in the Barents Sea, and several islands in the Gulf of Finland. In addition, the Hanko Peninsula was leased to the Soviet Union as a naval base for a period of 30 years. Also, any equipment located on the ceded territories was to be handed over to the Soviet Union. This meant that capital equipment and scores of locomotives, railroad cars, etc. were handed over.
The Finns were taken aback by the harsh peace terms forced upon them, but there was little they could do. Their war effort was collapsing as the winter turned the spring and it was likely that the Red Army would make significant gains into the heart of Finland in the summer of 1940 if the war continued.
Finnish territorial concessions to the Soviet Union as a result of the Moscow Peace Treaty.
Despite the final result, the war was still something of a disaster for the Red Army. Casualties were heavily lopsided in the Finns’ favor. Despite outnumbering the Finns, the Red Army sustained an estimated 323,000 casualties in comparison to only 70,000 for the Finnish Army. The Red Army also lost thousands of armored vehicles and the VVS lost several hundred aircraft. It was clear that the purges had done much to hamper the Soviet Union’s ability to wage war and Soviet leaders finally saw that the Red Army was in no shape to fight a major war against a formidable opponent, like Nazi Germany. Thus, massive reforms would be taken during 1940 and early 1941 to modernize and strengthen the Soviet Red Army, Red Navy, and VVS. These reforms would prove vital when the Germans stormed over into Mother Russia in June 1941.
Destroyed Soviet BT-5 Tank.