On This Day: Finland cedes major assets to Soviets as Winter War ends - Mar. 13, 1940

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(edited from Wikipedia)
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Winter War

The Winter War was a war between the Soviet Union and Finland. It began with a Soviet invasion of Finland on 30 November 1939, three months after the outbreak of World War II, and ended three and a half months later with the Moscow Peace Treaty on 13 March 1940. Despite superior military strength, especially in tanks and aircraft, the Soviet Union suffered severe losses and initially made little headway. The League of Nations deemed the attack illegal and expelled the Soviet Union.

The Soviets made several demands, including that Finland cede substantial border territories in exchange for land elsewhere, claiming security reasons – primarily the protection of Leningrad, 20 mi from the Finnish border. When Finland refused, the Soviets invaded. Most sources conclude that the Soviet Union had intended to conquer all of Finland, and cite the establishment of the puppet Finnish Communist government and the Molotov–Ribbentrop Pact's secret protocols as evidence of this, while other sources argue against the idea of a full Soviet conquest.

Finland repelled Soviet attacks for more than two months and inflicted substantial losses on the invaders in temperatures as low as ?43 °C (?45 °F). The battles focused mainly on Taipale along the Karelian Isthmus, on Kollaa in Ladoga Karelia and on Raate Road in Kainuu, but there were also battles in Salla and Petsamo in Lapland.

Following the initial setbacks, the Soviets reduced their strategic objectives and put an end to the puppet Finnish communist government in late January 1940, informing the Finnish government that they were willing to negotiate peace. After the Soviet military reorganized and adopted different tactics, they renewed their offensive in February 1940 and overcame the Finnish defences on the Karelian Isthmus. This left the Finnish army in the main theatre of war near the breaking point, with a retreat seeming inevitable. Consequently, Finnish commander-in-chief Carl Gustaf Emil Mannerheim urged a peace deal with the Soviets, while the Finns still retained bargaining power.

Hostilities ceased in March 1940 with the signing of the Moscow Peace Treaty in which Finland ceded 9% of its territory to the Soviet Union. Soviet losses were heavy, and the country's international reputation suffered. Their gains exceeded their pre-war demands, and the Soviets received substantial territories along Lake Ladoga and further north. Finland retained its sovereignty and enhanced its international reputation. The poor performance of the Red Army encouraged German Chancellor Adolf Hitler to believe that an attack on the Soviet Union would be successful and confirmed negative Western opinions of the Soviet military. After 15 months of Interim Peace, in June 1941, Germany commenced Operation Barbarossa, and the Continuation War between Finland and the Soviets began.

Soviet offensive on the Karelian Isthmus

The Soviets increased bombardments, wearing down the defenders and softening their fortifications. During daylight hours, the Finns took shelter inside their fortifications from the bombardments and repaired damage during the night. The situation led quickly to war exhaustion among the Finns, who lost over 3,000 soldiers in trench warfare. The Soviets also made occasional small infantry assaults with one or two companies. Because of the shortage of ammunition, Finnish artillery emplacements were under orders to fire only against directly threatening ground attacks. On 1 February, the Soviets further escalated their artillery and air bombardments.

Although the Soviets refined their tactics and morale improved, the generals were still willing to accept massive losses to reach their objectives. Attacks were screened by smoke, heavy artillery, and armour support, but the infantry charged in the open and in dense formations. Unlike their tactics in December, Soviet tanks advanced in smaller numbers. The Finns could not easily eliminate tanks if infantry troops protected them. After 10 days of constant artillery barrage, the Soviets achieved a breakthrough on the Western Karelian Isthmus in the Second Battle of Summa.

By 11 February, the Soviets had approximately 460,000 soldiers, 3,350 artillery pieces, 3,000 tanks and 1,300 aircraft deployed on the Karelian Isthmus. The Red Army was constantly receiving new recruits after the breakthrough. Opposing them, the Finns had eight divisions, totalling about 150,000 soldiers. One by one, the defenders' strongholds crumbled under the Soviet attacks and the Finns were forced to retreat. On 15 February, Mannerheim authorised a general retreat of the II Corps to a fallback line of defence. On the eastern side of the isthmus, the Finns continued to resist Soviet assaults, achieving a stalemate in the battle of Taipale.

Peace negotiations

Although the Finns attempted to re-open negotiations with Moscow by every means during the war, the Soviets did not respond. In early January, Finnish communist Hella Wuolijoki contacted the Finnish Government. She offered to contact Moscow through the Soviet Union's ambassador to Sweden, Alexandra Kollontai. Wuolijoki departed for Stockholm and met Kollontai secretly at a hotel. On 29 January, Molotov put an end to the puppet Terijoki Government and recognized the Ryti–Tanner government as the legal government of Finland, informing it that the USSR was willing to negotiate peace.

By mid-February, it became clear that the Finnish forces were rapidly approaching exhaustion. For the Soviets, casualties were high, the situation was a source of political embarrassment to the Soviet regime, and there was a risk of Franco-British intervention (which was overestimated by Soviet intelligence in February and March 1940). With the spring thaw approaching, the Soviet forces risked becoming bogged down in the forests. Finnish Foreign Minister Väinö Tanner arrived in Stockholm on 12 February and negotiated the peace terms with the Soviets through the Swedes.

Both Germany and Sweden were keen to see an end to the Winter War. The Germans feared losing the iron ore fields in Northern Sweden and threatened to attack at once if the Swedes granted the Allied forces right of passage. The German invasion plan, named Studie Nord, was later implemented as Operation Weserübung. Leon Trotsky opined after the war that Hitler would view a Soviet occupation of Finland as a threat to this plan. Any potential German plans for bases in Finland would also be thwarted if the Soviets occupied Finland, though Trotsky himself believed that Hitler was not interested in occupying Finland, but rather its role as a buffer between Germany and the USSR.

End of war in March

On 9 March, the Finnish military situation on the Karelian Isthmus was dire, as troops were experiencing heavy casualties. Artillery ammunition was exhausted and weapons were wearing out. The Finnish government, realizing that the hoped-for Franco-British military expedition would not arrive in time, as Norway and Sweden had not given the Allies right of passage, had little choice but to accept the Soviet terms. Finnish President Kyösti Kallio resisted the idea of giving up any territory to the Soviet Union, but eventually agreed to sign the Moscow Peace Treaty. When he signed the document, the tormented president uttered the well-known words:

Let the hand wither that signs this monstrous treaty!

Moscow Peace Treaty

The Moscow Peace Treaty was signed in Moscow on 12 March 1940. A cease-fire took effect the next day at noon Leningrad time, 11 a.m. Helsinki time. With it, Finland ceded a portion of Karelia, the entire Karelian Isthmus and land north of Lake Ladoga. The area included Viipuri (Finland's second-largest city [Population Register] or fourth-largest city [Church and Civil Register], depending on the census data), much of Finland's industrialised territory, and significant land still held by Finland's military – all in all, nine per cent of Finnish territory. The ceded territory included 13 per cent of Finland's economic assets. 12 per cent of Finland's population, 422,000 to 450,000 Karelians, were evacuated and lost their homes. Finland ceded a part of the region of Salla, Rybachy Peninsula in the Barents Sea, and four islands in the Gulf of Finland. The Hanko peninsula was leased to the Soviet Union as a military base for 30 years. The region of Petsamo, captured by the Red Army during the war, was returned to Finland according to the treaty.

Finnish concessions and territorial losses exceeded Soviet pre-war demands.

Aftermath and casualties

The 105-day war had a profound and depressing effect in Finland. Meaningful international support was minimal and arrived late, and the German blockade had prevented most armament shipments.

Immediately after the war, Helsinki officially announced 19,576 dead. According to revised estimates in 2005 by Finnish historians, 25,904 people died or went missing and 43,557 were wounded on the Finnish side during the war.

The official Soviet figure published on 26 March 1940, with 48,475 dead and 158,863 sick and wounded. More recent Russian estimates vary. In 2013, Pavel Petrov stated that the Russian State Military Archive has a database confirming 167,976 killed or missing along with the soldiers' names, dates of birth and ranks.

Germany

The Winter War was a political success for the Germans. Both the Red Army and the League of Nations were humiliated, and the Anglo-French Supreme War Council had been revealed to be chaotic and powerless. The German policy of neutrality was unpopular in the homeland, and relations with Italy had suffered. After the Moscow Peace Treaty, Germany improved its ties with Finland, and within two weeks, Finnish-German relations were at the top of the agenda. More importantly, the very poor performance of the Red Army convinced Hitler that an invasion on the Soviet Union would be successful. In June 1941, Hitler declared, "we have only to kick in the door and the whole rotten structure will come crashing down".

Allies

The Winter War laid bare the disorganisation and ineffectiveness of the Red Army and that of the Allies. The Anglo-French Supreme War Council was unable to formulate a workable plan, revealing its unsuitability to make effective war in either Britain or France. This failure led to the collapse of the Third Daladier Government in France and the nomination of Paul Reynaud as the new Prime Minister of France.
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https://en.wikipedia.org/wiki/Winter_War

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