The Red Army deployed its formations on the Soviet-Finnish border. At this time, negotiations were underway in Moscow with the Finnish delegation on the removal of the border from Leningrad. The Soviet Union offered in return for the transfer of the border in the area of ​ ​ North Palmyra to the depths of Finland, most of the territory of Karelia. The demand-request was argued with the slogan "to ensure the safety of the city of three revolutions." The Finns believed that the transfer of the border in the Leningrad region was the first step towards establishing communist control over the entire Suomi. Recent studies by historians have shown that the Finns had reason to suspect Moscow of malicious intentions. After the failure of the negotiations, Finland announced a general mobilization. On November 28, 1939, the USSR broke off negotiations and canceled the non-aggression treaty with Finland of 1932. After 48 hours, the war began, which was dubbed "winter" in Finland.