The neutrality of this article is disputed. See Talk:Continuation War. Two disputed versions of the article are given below:

Table of contents
1 Introduction
2 Background
3 Coordination with Germany
4 Outbreak of the war
5 Diplomatic manoevres
6 The end of the war
7 Conclusion
8 See also

Introduction

The Continuation War was fought between Finland and the Soviet Union during World War II. The war started after Soviet bombings of Finnish towns, without declaration of war, on June 25, 1941, and ended, after an armistice September 19, 1944, with the Paris Peace Treaty of 1947. The United Kingdom declared war on Finland on December 6, 1941, but didn't participate actively.

The Continuation War is so named because it's perceived as a continuation of the Winter War (November 29, 1939, to March 12, 1940), during which the combatants and the war objectives were the same.

The Continuation War is the name for the war between Finland and the Soviet Union from June 26,1941 to September 19,1944 during World War II. It is so named because most Finns see it as a continuation of the earlier Soviet-Finnish Winter War of November 30, 1939-March 12, 1940.
Major events of World War II, and the tides of war in general, were highly influential on the Continuation War:  
During the conflict Finland acted in concert with Nazi Germany, while its enemy the Soviet Union was allied to Britain and for most of the period the United States.
Finland's principal goal during World War II was, although nowhere literally stated, to survive the war as an independent country, capable to mind its own businesses in a politically hostile environment. It must be noted that Finland's exertion in this respect was successful, although the price most certainly was high counted in war casualties, pecuniary tribute, territorial loss, bruised international reputation and adaptations to the Soviet Union.Finland's principal goal during World War II was, although nowhere explicitly stated, to survive the war as an independent country and to reverse her territorial losses under the March 1940 Moscow Peace Treaty. Finland's exertion in the former respect was successful, although the price was high in war casualties, reparation payments, territorial loss, bruised international reputation and subsequent adaptation to Soviet international perspectives.
 The war was formally concluded by the Paris peace treaty of 1947.

Background

In November 1939 the Soviet Union had commenced an invasion of Finland (the Winter War), allegedly in order to improve her own strategic position in Eastern Europe in preparation for a possible widening of the war. After the Moscow Peace Treaty ending the Winter War, Finland was bent on payback. Public opinion longed for the re-acquisition of the homes of the 12% of Finland's population who had been forced to leave Karelia in haste. The peace treaty was perceived as a great injustice. It seemed as if the losses at the negotiation table, including Finland's second town Viipuri, had been worse than on the battlefield.[1]Ongoing war between Germany and Western Allies had struck Finnish industry significally and blocked Finland's Baltic Sea routes to Great Britain and Commonwealth, enforcing Finland to seek alternate markets from Germany. Securing foodstuffs and fertilizer imports from Germany were also of great importance. There was little trust in Soviet Union's willingness to settle permanently for less than wholly occupied Finland after the Baltic states had been sovietized in accordance to coreography what looked much like the initial Soviet plan for the Winter War.

Both public opinion and political leaders in Finland put their hope to a correction at the peace conference expected after the World War.

In November 1939 the Soviet Union had invaded Finland in order to improve her own strategic position in Eastern Europe in preparation for a widening of the war. After the Moscow Peace Treaty ended the Winter War, Finland was bent on revenge. Most public opinion longed for the re-acquisition of the homes of the 12% of Finland's population who had been forced to leave Karelia in haste. The peace treaty was perceived as a great injustice, which was expected to be corrected at the peace conference awaited after World War II. It seemed as if the losses at the negotiation table, including Finland's second town Vyborg, had been worse than on the battle field. [1]
Then there was a vociferous minority opinion which since the 1920s had advocated the protection of the ethnically akin Finnic peoples under Soviet oppression by extending Finland's territory eastwards; according to which Finland's security politics focusing on the League of Nations, the politically akin democratic Western countries, and Scandinavia (particularly Sweden) had led to a total fiasco. In expansionist circles Imperial Germany's role in the "White" government's victory in the Civil War in Finland was commemorated.

The experience from World War I emphasised the importance of close and friendly relations with the victors, why Nazi-Germany was intensely courted immediately after the Winter War, even despite that Germany had been the ally of the invader, Soviet Union. Finland got a new Cabinet with a Foreign Minister, Rolf Witting, less British-minded and more in the taste of the Germans, and a new energetic ambassador in Berlin, Toivo Mikael Kivimäki.

Then there was a vociferous minority opinion which since the 1920s had advocated the eastward extrension of Finland's territory to incorporate the ethnically akin Finnic peoples under Soviet rule. To advocates of such expansion, Finland's security policy focusing on the League of Nations, the politically akin democratic Western countries, and Scandinavia (particularly Sweden) had led to total failure.

Expansionists drew upon the experience of World War I, when German assistance had played a key part in the defeat of Communism within Finland. Despite its agreement with the Soviets consigning Finland to the Soviet sphere of influence, Nazi Germany was intensely courted immediately after the Winter War. A new Finnish Cabinet included as Foreign Minister Rolf Witting, more to the taste of the Nazis, and the energetic Toivo Mikael Kivimäki became ambassador in Berlin.

The World War was however not yet over, and in Finland the proclaimed State of War was never revoked. Field Marshall Mannerheim remained commander-in-chief, censorship was not abolished but rather used to facilitate closer relations with Germany, and the military retained supremacy over civil authorities.The World War was however barely begun, and in Finland the proclaimed State of War was never revoked. Field Marshal Mannerheim remained commander-in-chief, censorship was not abolished but rather used to facilitate closer relations with Germany, and the military retained supremacy over civil authorities.
From August 18, 1940, Finland secretly negotiated with Germany on military cooperation, buying artillery and other-badly needed weapons in breach of the August 1939 Molotov-Ribbentrop Pact. Finland in return facilitated German troop transfers to Finnmark in Northern Norway (occupied by Germany since June-July 1940). This was also seen to counterbalance USSR's troop transfer right through Finland proper to the ceded Hanko peninsula military base, which had been handed over as a part of Winter War's peace treaty. Through the potential presence of German troops on Finnish territory, Finland intended to deter the Soviet Union from planing further military assaults, as that then would threaten to involve Germany on the side of Finland's.From August 18, 1940 Finland secretly negotiated with Germany on military cooperation, buying artillery and other-badly needed weapons from Germany in breach of the August 1939 Molotov-Ribbentrop Pact. Finland in return facilitated German troop transfers to Finnmark in Northern Norway (occupied by Germany since June 1940). Through the potential presence of German troops on Finnish territory, Finland planned to deter further Soviet threats, by threathening in turn to involve Germany on Finland's side.
This secret Finno-German agreement was in material breach of the peace treaty of the Winter War, which in fact was chiefly targeted against cooperation between Germany and Finland. It has in retrospect been disputed whether the ailing President Kallio was informed. Possibly the then-premier Risto Ryti, in concert with Field Marshal Mannerheim[1], took it as their responsibility during Kallio's illness.This secret Finno-German agreement was in material breach of the peace treaty of the Winter War, which in fact was chiefly targeted against cooperation between Germany and Finland. It has in retrospect been disputed whether the ailing President Kallio was informed. Possibly responsibility was taken by the then-premier Risto Ryti in concert with Field Marshal Mannerheim [1].
Germany's dictator Adolf Hitler had not been interested in Finland before the Winter War. Now he saw the value of Finland as a base for his forthcoming invasion of the Soviet Union (Operation Barbarossa), and perhaps also the military value of the Finnish army. The German-Finnish agreement negotiated in August 1940 was formalised in September. It allowed Germany the right to send its troops by trucks and busses through Finland, ostensibly to facilitate Germany's reinforcement of its forces in northern Norway.German dictator Adolf Hitler had not been interested in Finland before the Winter War. Now he saw the value of Finland as a base for his forthcoming invasion of the Soviet Union (Operation Barbarossa), and perhaps also the military value of the Finnish army. The German-Finnish agreement negotiated in August 1940 was formalized in September. It allowed Germany the right to send its troops by trucks and busses through Finland, ostensibly to facilitate Germany's reinforcement of its forces in northern Norway.
A further German-Finnish agreement in December 1940 led to the stationing of German troops in Finland - mainly in the vicinity of the northern border to the Soviet Union. In the following months they arrived in small but increasing numbers, establishing quarters, depots and bases along the road to Norway, which later would be used for the concentration of troops aimed for Northern Russia. Although the Finnish people knew only the barest details of the agreements with Germany, the pro-German policy was generally approved, especially among the Karelians who wanted to recover the ceded Karelia.A further German-Finnish agreement in December 1940 led to the stationing of German troops in Finland (mainly in the vicinity of the northern border to the Soviet Union) and in the coming months they arrived in small but increasing numbers, establishing quarters, depots and bases along the road to Norway, which later would be used for the concentration of troops aimed for Northern Russia. Although the Finnish people knew only the barest details of the agreements with Germany, the pro-German policy was generally approved, especially among the displaced Karelians who wanted to recover the ceded territory of Karelia.

Coordination with Germany

By the spring of 1941, the Finnish military was aware of the German plans for the invasion of Russia, although no-one could feel sure of Hitler's real intentions. An uncertainty still prevailed as to whether Hitler really intended to attack the Soviet Union before the Battle of Britain was concluded. Perhaps the build-up aimed only at applying pressure - not a two-front war? Germans hinted to Finns that they could possibly persuade the Germans to concessions and Finnish General A.Airo delivered in late May 1941 five alternate border rearrangement drafts to the Germans, who should then propose the best they could bargain to the Soviets. In reality, the Germans had no such intentions. On the other hand, Finns had learnt from past that in the deals of great powers a small country can be used as a change, and in such case Finland could have been used as a token of reconciliation between Hitler and Stalin, which the Finns had every reason to fear.

The German army's standing was then at its zenith, and Germany's final victory, and Europe's adaptation to Nazi hegemony, seemed unavoidable. Finnish political leadership calculated that only by providing their support to Germany now they can secure their country's future in the post-war Europe.

By the spring of 1941, the Finnish military was aware of the German plans for the invasion of Russia, although Hitler's real intentions remained unclear. An uncertainty still prevailed as to whether Hitler really intended to attack the Soviet Union before Britain's defeat. The German army's standing was then at its zenith, and Germany's final victory, and Europe's adaptation to Nazi hegemony, seemed unavoidable.
Race issues were reasons of particular concerns: The Finns were not viewed favorably by the Nazi race theorists. By active participation on Germany's side, Finnish leaders hoped for a more independent position in post-war Europe, through the removal of the Soviet threat and the incorporation of the akin Finnic peoples of neighbouring Soviet areas. This view gained increasing popularity in the Finnish leadership, and also in the press, during the preparations for the awaited outbreak of hostilities between Germany and the Soviet Union.
The voices advocating a more interested attitude towards Germany grew stronger, as they felt their arguments heaped, and the voices advocating armed neutrality within Finland's new borders (not so few of the Social Democrats, and some of the most left leaning in the Swedish People's Party) softened. Contacts with Sweden's Conservative Foreign Minister Günther showed an enthusiasm unusual for the Swedes for the anticipated "Crusade against Bolshevism".Voices advocating closer ties with Germany grew stronger and the voices advocating armed neutrality within Finland's new borders (some among the Social Democrats, and some of the more left-leaning in the Swedish People's Party) softened. Contacts with Sweden's Conservative Foreign Minister Günther showed an enthusiasm unusual for the Swedes for the anticipated "Crusade against Bolshevism".
Finland's army under Marshal Mannerheim felt it had a broad political support for increasing cooperation with Germany, and accepted not only to put virtually half of the Soviet-Finnish border under German control, but also to put Finnish army units under German command. Some officers (for instance many of them with background in the Finnish Jaeger troops) were happy with this, others less so. Civilian politicians were not deemed fit for this kind of over-sensitive information.Finland's army under Marshal Mannerheim felt it had a broad political support for increasing cooperation with Germany, and agreed not only to put virtually half of the Soviet-Finnish border under German control, but also to put Finnish army units under German command. Some officers (for instance many of them with backgrounds in the Finnish Jaeger troops) were happy with this, others less so. Civilian politicians were not deemed fit for over-sensitive information.
What began for the Finns as a defensive strategy, designed to provide a German counterweight to Soviet pressure, ended as an offensive strategy, aimed at re-conquest of formerly Finnish Karelia and an invasion of East-Karelia in the Soviet Union. The Finns had been lured by the prospects of regaining their lost territories and ridding themselves of the Soviet threat.What began for the Finns as a defensive strategy, designed to provide a German counterweight to Soviet pressure, ended as an offensive strategy, aimed at invading the Soviet Union. Finland had been lured by the prospects of regaining its lost territories into becoming a party to Nazi Germany's planned invasion of the USSR.

Outbreak of the war

The signs and rumours of the German assault on Russia heaped up, and on June 9 partial mobilisation was ordered, and the northern Finish air defence troops consisting of 30,000 men were put under German command. In practice Germany already held the northern half of the border to Russia. On June 14 the 3rd Army Corps was mobilised and put under German command. On June 17 general mobilisation took place, and on June 20 Finland's government ordered 45,000 people at the Soviet border to be evacuated. On June 21, Germany finally informed Finland's General Staff chief, Erik Heinrichs, that the German attack was to begin.
The Finnish government didn't wish to appear as the aggressor; the popular support for such a move was deemed insufficient, and international relations would have suffered in vain. Thus Finland took no part in the German invasion of the Soviet Union on June 22. (Hitler's public statement gave however another impression. Hitler declared Germany to attack the Bolshevists "(...) in the North in alliance ["im Bunde"] with the Finnish freedom heroes".) Three days later, Soviet bombing of residential areas and railway stations in for instance the towns of Porvoo, Turku and Helsinki, gave the Finnish government the needed pretext to open hostilities, and war was declared on June 26th. Finland actually had declared herself neutral, but had already before Germany's assault contributed with mines in the Gulf of Finland, in accordance with German wishes.The Finnish government's wish not to appear as the aggressor explains why Finland took no part in the initial German invasion of the Soviet Union on June 22. Hitler's public statement gave a different impression, declaring that Germany would attack the Bolshevists "in the North in alliance [im Bunde] with the Finnish freedom heroes". Three days later, alleged Soviet bombing of the towns of Helsinki, Turku and Porvoo gave the Finnish government the needed pretext to open hostilities, and war was declared on June 26. Finland actually had declared herself neutral, but had already before Germany's assault contributed with mines in the Gulf of Finland, in accordance with German wishes.
After Finland's declaration of war, the German troops in Northern Finland started their offensive against the Soviet Union on June 28, a week after the actual start of Operation Barbarossa. 
On July 10, the Finnish army began a major offensive on the Karelian Isthmus and north of Lake Ladoga. Mannerheim's order of the day clearly states that the Finnish involvement was an offensive one.[1] By the end of August 1941, Finnish troops had reached the pre-war boundaries. The crossing of the pre-war borders led to tensions in the army, the Cabinet, the parties of the parliament, and domestic opinion. Military expansionism might have gained popularity, but it was far from unanimously championed.
Also international relations were strained - notably with Britain and Sweden, whose governments in May and June confidently had learned from Foreign Minister Witting that Finland had absolutely no plans for a military campaign coordinated with the Germans. Finland's preparations were said to be purely defensive.
Sweden's leading Cabinet members had hoped to improve the relations with Germany through indirect support of Operation Barbarossa, mainly channelled through Finland. PM Hansson and FM Günther found however, that the political support in the Cabinet and within the Social Democratic organisations turned out to be insufficient, particularly after Mannerheim's July 10 Order of the Day, and even more so after Finland by deeds had commenced a war of conquest. A tangible effect was that Finland became still more dependent on food and munitions from Germany.Senior Swedish ministers had hoped to improve relations with Germany through indirect support of Operation Barbarossa, mainly chanelled through Finland. PM Hansson and FM Günther found however, that the political support in Sweden turned out to be insufficient, particularly after Mannerheim's July 10 Order of the Day, and even more so after Finland by deeds had commenced a war of conquest. A tangible effect was that Finland became still more dependent on food and munitions from Germany.
In December 1941, the Finnish advance had reached the outskirts of Leningrad and the River Svir (which connects the southern ends of Lake Ladoga and Lake Onega). By the end of 1941, the front stabilized, and the Finns did not conduct major offensive operations for the following two and a half years. The fighting morale of the troops declined when it was realized that the war would not end soon.
It has been suggested that the execution of the prominent pacifist leader Arndt Pekurinen in November 1941 was an attempt to restore the morale of the troops.Fear of army demoralisation was a reason for the execution of the prominent pacifist leader Arndt Pekurinen November 1941.

Diplomatic manoevres

Germany's eastern campaign was planned as a blitzkrieg lasting a few weeks. British and US observers likewise believed that the invasion would be concluded before August. In the autumn of 1941 this turned out to be wrong, and leading Finnish militaries started to mistrust Germany's capacity. German troops in Northern Finland faced circumstances they were not properly prepared for, and failed also badly to reach their targets, most importantly Murmansk. Finland's strategy now changed. A separate peace with the Soviet Union was offered, but Germany's strength was far too terrifying. The idea that Finland had to continue the war for some time, putting the own forces at the least possible danger, and hoping for the Wehrmacht and the Red Army meanwhile would wear each other ready for the negotiation table or out of the way of Finland's independent decisions, gained increasingly support.Germany's eastern campaign was planned as a blitzkrieg lasting a few weeks. British and US observers likewise believed at first that the invasion would be concluded before August. In the autumn of 1941 this turned out to be wrong, and leading Finnish military officers started to mistrust Germany's capacity. Finland's strategy now changed. A separate peace with the Soviet Union was offered, but Germany's strength was too great. Finland had to continue the war for some time, putting its own forces at the least possible danger while hoping for a German victory.
Finland's participation in the war brought major benefits to Germany. The Soviet fleet was blockaded in the Gulf of Finland, so that the Baltic was freed for training German submarine crews as well as for German shipping, especially for the vital iron ore from northern Sweden and nickel and rare metals needed in steel processing from the Petsamo area. Finnish front secured the northern flank of German Army Group North in the Baltic states. The sixteen Finnish divisions tied down numerous Soviet troops, put pressure on Leningrad - although Mannerheim refused to attack - and threatened the Murmansk Railroad. Sweden was further isolated and was increasingly pressured to comply with German and Finnish wishes, though with limited success.
Despite Finland's contributions to the German cause, the Western Allies had ambivalent feelings, torn between residual goodwill for Finland and the need to accommodate their vital ally, the Soviet Union. As a result, Britain declared war against Finland, but the United States did not. There was no combat between these countries and Finland, but Finnish sailors were interned overseas. In the United States, Finland was highly regarded, partly due to having continued to make payments on its World War I debt faithfully throughout the inter-war period.
The Allies often characterise Finland as one of the Axis Powers, although the term used in Finland is "co-belligerence with Germany". Finland later also earned respect in the West for the strength of its democracy and its refusal to allow extension of Nazi anti-Semitic practices in Finland. Finnish Jews served in the Finnish army; and Jews were not only tolerated in Finland[1], but most Jewish refugees also were granted asylum (less than 20 of the more than 500 refugees were handed over to Germany). The field synagogue in Eastern Karelia was probably unique on the German side during the War.
Some Soviet prisoners of war, mainly communists and officers (and a handful of Jewish refugees) were given to the Germans, most of them dying in Nazi concentration camps while some were given to the Gestapo for interrogation. Sometimes these handovers were demanded in return of arms or food. Sometimes the Finns received Soviet prisoners of war in return. These were mainly Estonians and Karelians willing to join the Finnish army. These, as well as some volunteers from the occupied Eastern Karelia, formed the Tribe Battalion (Finnish: "Heimopataljoona"). At the end of the war, the USSR required that the members of the Tribe Battalion were to be handed over to the Soviet Union. Some managed to escape before or during the transport, but most of them were either sent to the Gulag camps or executed.
In 1941, already before the Continuation War, one battalion of Finnish volunteers joined the German Waffen-SS with silent approval of the Finnish government. It has been concluded that the battallion served as a token of Finnish commitment to cooperation with Germany. This battalion, named the Finnisches Freiwilligen Bataillon fought as part of the 5th SS Wiking Division in the Ukraine and Caucasia. The battalion was pulled back from the front in May 1943 and was transported to Tallinn where it was disbanded on July 11. The soldiers were transferred into different units of the Finnish army.

The end of the war

Finland began actively to seek a way out of the war after the disastrous German defeat at Stalingrad in January-February 1943. Edwin Linkomies formed a new cabinet with the peace process as the top priority. Negotiations were conducted intermittently in 1943-44 between Finland and its representative Juho Kusti Paasikivi on the one side and the Western Allies and the Soviet Union on the other, but no agreement was reached.
Instead, on June 9 1944, the Soviet Union opened a major offensive against Finnish positions on the Karelian Isthmus and in the Lake Ladoga area (it was timed to accompany the Battle of Normandy). On the second day of the offensive, the Soviet forces broke through the Finnish lines, and in the succeeding days they made advances that appeared to threaten the survival of Finland. Finland clearly needed more weapons and ammunition, which the Nazi Foreign Minister Joachim von Ribbentrop offered in exchange for a guarantee that Finland would not again seek a separate peace. On June 26 President Risto Ryti gave this guarantee as a personal undertaking, which he intended to last for the remainder of his presidency. In addition to material deliveries, Germany sent some assault gun brigades and a Luftwaffe fighter-bomber unit to temporarily support the most threatened defense sectors
With new supplies from Germany, the Finns were now equal to the crisis, and halted the Russians in early July 1944, after a retreat of about one hundred kilometers that brought them approximately to the same line of defense Finns were holding at the end of Winter War, Viipuri(Vyborg)-Kuparsaari-Taipale(VKT)-line running from Vyborg to Vuoksi river and along the river to Lake Ladoga, where Soviet offensive were stopped in the Battle of Tali-Ihantala. Finland had already become a sideshow for the Soviet leadership, which now turned their attention to Poland and south-eastern Europe. Although the Finnish front was once again stabilized, the Finns were exhausted and wanted to get out of the war.

Mannerheim had repeatedly reminded the Germans that in case their troops in Estonia would pull back, Finland would be forced to make a peace at even very unfavourable cost. Soviet-occupied Estonia would have provided the enemy favourable base for amphibious invasions, air attacks against Helsinki and other cities and strangled Finnish access to the sea. When the Germans indeed withdrew, Finnish urge to end the war increased respectively. Perhaps because of realizing validity of this point, initial German reaction to Finland's announcement of separate peace was limited to vocal opposition only.

President Ryti resigned, and Finland's military leader and national hero, Carl Gustaf Mannerheim, became president, accepting the responsibility for ending the war.

On September 19 1944, an armistice (practically a preliminary peace treaty) was signed in Moscow between the Soviet Union and Finland. Finland had to make many limiting consessions: The Soviet Union regained the borders of 1940, with the addition of the Petsamo area. The Porkkala Peninsula (adjacent to Finland's capital Helsinki) was leased to the USSR as a naval base for fifty years (but returned in 1955), and transit rights were granted. Finland's army was to demobilize in haste. And Finland was required to expel all German troops from its territory. As the Germans refused to leave Finland voluntarily, the Finns had no choice but to fight their former supporters out of Finland in the Lapland War.

Conclusion

In retrospect the Continuation War might be seen as the result of a series of political miscalculations by the Finnish leadership, a point of view often stated in Allied literature. The matter has been thoroughly scrutinised in Finland, and most considerate commentators would probably hold that Finland was more a victim of bad luck than of bad skills (i.e. being forced to make a choice in a situation when any of the available alternatives would result in being attacked by either side) although Finland's martial skills clearly outshined her diplomatic skills. According to the proceedings of war so far, Finland chose the alternative that seemed back then to provide better chances of survival in post-war world. The aged Field Marshal Mannerheim might have been responsible for a couple of misjudgements, the infamous July 10th 1941 Order of the Day by many held as one of them. But at the end of the war he had earned a remarkable reputation among former foes and allies in Finland aswell as abroad, which to a considerable degree eased Finland's extrication from a potentially disastrous undertaking.The Continuation War may be seen as the result of a series of political miscalculations by the Finnish leadership, in which Finland's martial abilities clearly outshone her diplomatic skills. The aged Field Marshal Mannerheim might have been responsible for misjudgements, notably the infamous July 1941 order of the day, but his pragmatism and his standing as a national hero eased Finland's extrication from a potentially disastrous undertaking.
In any event, Finland's fate was no worse than any other country struck by the World War - quite the contrary. Finland had defended her territory and her civilians with more success than most other European countries. Only 2,000 Finnish civilians were killed during World War II, and only relatively narrow border regions had been conquered by force. For nearly three years until June 20th 1944, when Vyborg fell, not one major Finnish town was besieged or occupied.
After the war, Finland preserved her independence while adjusting her foreign policy to the Soviet Union, now the world's second superpower, a concession which the Soviet government reciprocated by refraining from too obvious intrusions in Finland's domestic affairs. To Moscow, an independent Finland might have been considered a low price for keeping Sweden formally neutral in the Cold War, a quid pro quo which for forty years safeguarded wider Soviet strategic interests in the region.After the war, Finland preserved her independence while adjusting her foreign policy to avoid offence to the USSR, now the world's second superpower, a concession which the Soviet government reciprocated by surrendering part of its gains from the postwar settlement. To Moscow, an independent Finland was a price worth paying for keeping Sweden formally neutral in the Cold War, a quid pro quo which for forty years safeguarded wider Soviet strategic interests in the region.
Finland had not won, how would that have been possible against the Soviet Union with a population 50 times as big? But Finland had managed to avoid the total occupation and the highly probable following annihilation. A major goal of post-war Finnish foreign policy was to keep it that way. 

See also

Finlandization, Co-belligerence, List of Finnish wars