operationäppäin
Operation Äppäin was a covert intelligence operation conducted by Finnish counter-intelligence during the latter stages of World War II. Its primary objective was to gather information on Soviet military activities and intentions along the Finnish-Soviet border, particularly in the Karelian Isthmus. The operation involved a network of agents who operated behind enemy lines, often in dangerous conditions.
The Finnish intelligence services were concerned about potential renewed Soviet offensives and sought to preemptively understand
The operation was characterized by its clandestine nature and the reliance on deep cover agents. Success was