military base for a period of 30 years. During the Continuation War, Soviet troops were forced to evacuate Hanko in early December 1941. The Soviet Union renounced the lease formally in the Paris peace treaty of 1947. As a curiosity, it can be noted that the short Russo-Finnish front across the base of the peninsula on the Finnish side was held in part by volunteer troops from Sweden. A museum has been established at this location, among the trenches and other remnants of the war.
The role of the Hanko naval base was replaced by Porkkala in the armistice between Finland and the Soviet Union of September 19, 1944, released back to Finland in January
