Chronology of World War II

March 1940

Tuesday, March 12th


Battle of the Atlantic

  • The British Home Fleet returns to Scapa Flow where anti-aircraft and anti-submarine defenses have been greatly increased.
  • The British steamer Gardenia (3745t) from sinks on a mine near Cromer Knoll. This is a result of the German destroyer mine-laying operation of 9 February. The entire crew is picked up by the British anti-submarine trawler Viviana.
[larr2larr | rarrrarr2]

Finland - Winter War

Day 104

There is fierce fighting on the Isthmus to the northeast and south of Viipuri. The Russians break through at Kollaa to a depth of about 1 km. The Finns decide to abandon the defensive line along the Kollaanjoki River. Col Hersalo's 21st Div launches a counterattack in Vuosalmi. III Army Corps Commander Maj-Gen Talvela decides to pull his troops back in Vuosalmi on account of ceasefire negotiations.

Colonel Hersalo's 21st Division launches a counterattack in Vuosalmi.
Photo: SA-KUVA

Finns Counterattack at Vuosalmi


Finns Counterattack at Vuosalmi

The Treaty of Moscow ends the 104-day day Russo-Finnish 'Winter War'. Finland loses the Karelian Isthmus which includes the city of Viipuri and the Vuokai 'industrial belt'. Also lost are the Hangö naval base and border areas northwest of Lake Ladoga, in the 'waist' and on the Arctic coast.

French Prime Minister Daladier tells the Chamber of Deputies that an Anglo-French expeditionary force is ready to embark for Finland on receipt of formal Finnish request for assistance.

[larr2larr | rarrrarr2]

[ Mar 11th - Mar 13th]