Battle of Vyborg Bay (1944)
The Battle of Vyborg Bay (Finnish: Viipurinlahden taistelu) was fought in the Finnish-Soviet Continuation War (1941–1944). == Background == The Soviet offensive against the Finns started on 10 June and managed to break through the Finnish defensive lines at Valkeasaari and Kuuterselkä on 15 June.
Source: Wikipedia — Battle of Vyborg Bay (1944) (CC BY-SA 4.0)