Operation Northwind (1941)
Appearance
Operation Nordwind was a joint German-Finnish naval operation in the Baltic Sea in 1941. The operation itself was a distracting maneauver so that another German force could occupy the Estonian islands of Hiiumaa and Saaremaa without the interference of the Soviet Red Fleet.
The operation suffered however a major setback when the Finnish coastal defence ship Ilmarinen ran into a minefield and sank. It is uncertain if the Soviets ever noticed the fleet as they never responded.