sentences:  On 29 October "Karjala" which had just returned from repairs joined with "Turunmaa" in shelling the island of Sommers, where a Finnish landing attempt had previously been turned back.Most of the war "Karjala" like other Finnish gunboats was tasked with guarding of the mine barriers north-east of Hogland and performing anti-submarine patrols in the same region.However, when it became apparent on 12 July 1942 that Soviet submarines had managed to bypass the mine barrier "Karjala" was sent to strengthen the escorts protecting the shipping between Sweden and Finland.