Operation Kilpapurjehdus ("Regatta") was the covername for the militarization of the Åland islands. The operation took place on June 22, 1941, and in this way, Finland strived to prevent Soviet landings in the area. The Soviet invasion threat was no longer acute after the Soviets had evacuated their Hanko base and the Germans had advanced in the Baltic states. The Finns started to transport the troops towards the eastern front. The Åland islands were again demilitarized after the end of the Continuation War and remain so today.