Despite the disruption to international relations caused by the Russian Revolution in 1917, diplomatic contacts were quickly established between the nascent Russian Soviet Federative Socialist Republic, with the appointment of Vatslav Vorovsky as diplomatic representative to the Scandinavian countries of Denmark, Sweden and Norway. Vorovsky's appointment was shortlived, as countries began withdrawing diplomatic recognition of envoys from the Soviet state, and there followed a period without representation until the appointment in 1923 of as representative of the Soviet Union to Denmark. It was during Geyn's tenure that on 18 June 1924 the Soviet mission was officially established in Denmark, with Geyn serving as the officially accredited representative. Representation continued at the level of missions throughout the German invasion and occupation of Denmark in 1940, until the Axis invasion of the Soviet Union in June 1941. In April 1944 the Soviet Union established contacts and assigned a representative to the clandestine Danish Freedom Council.