1939 ⟶ Soviet Shelling of Mainila Incident
The Soviets stage the shelling of Mainila, Soviet artillery ...Year
1939
1940
💣 Soviet Shelling of Mainila Incident
The Soviets stage the shelling of Mainila, Soviet artillery shells a field near the Finnish border, accusing Finns of killing Soviet troops.⟶

USSRFinlandWinter WarProvocationBorder DisputeDiplomacyMilitaryFalse Flag
⚠️ Stalin Threatens Finland Regarding Delays in Negotiations
Finns meet Stalin again. Stalin tells them that "an accident" might happen between Finnish and Soviet troops, if the negotiations last too long.⟶
RussiaFinlandSoviet UnionThreatNegotiationsDiplomacyWinter WarStalin
🇫🇮 Finland Rejects Soviet Border Demands
Finland and Soviet Union again negotiate new borders. Finns mistrust Stalin's aims and refuse to give up territory breaking their defensive line.⟶

FinlandSoviet UnionBorder DisputesWinter WarTerritorial ClaimsDiplomacyResistance
⚔️ Soviet Union Attacks Finland: Start of Winter War
The Soviet Union attacks Finland in what would become known as the Winter War.⟶

USSRFinlandWinter WarInvasionMilitaryEastern EuropeWarConflictMilitary CampaignWorld War II
💥 Helsinki Bombed; Finns Retreat to Mannerheim Line
Russia continues its war against Finland; Helsinki is bombed. In the first two weeks of the month, the Finns retreat to the Mannerheim line, an outmoded defensive line just inside the southern border with Russia.⟶

FinlandUSSRWinter WarBombingMilitaryMannerheim LineDefenseEastern EuropeWar
❄️ Soviet Offensive Halted in Finland
The Soviet offensive in Finland is halted by several Finnish victories; numerous Soviet tanks are destroyed.⟶
RussiaFinlandWinter WarMilitaryOffensiveSoviet Union