Lowca and Parton in Cumbria recall 1915 attack by German U-boat
6 August 2014 Last updated at 08:43 BST
German attacks on coastal communities along the east coast of England during World War One have been well documented.
But the west coast also suffered at the hands of U-boats.
In the early hours of 16 August 1915, the Cumbrian settlements of Lowca and Parton, near Whitehaven, were bombarded by shells meant for a nearby chemical works.
Families fled their homes as the submarine surfaced and fired 55 shells from its deck gun.