Oswald left Alexandria, Egypt, for a patrol east of Sicily on 19 July 1940. On 30 July, she spotted a convoy of several merchant ships. Her attack on the convoy was not successful and she was spotted by the convoy's escorting destroyers. Subsequently, on 1 August Oswald was rammed and sunk by the Italian destroyer Ugolino Vivaldi while on patrol south of Calabria; 52 crewmen were rescued by Italian warships and 3 were lost.
Citations
Bibliography
Heden, Karl E. (2006). . Branden Books. ISBN 978-0-8283-2118-1.
Lenton, H. T. (1972). British Submarines. Navies of the Second World War. London: MacDonald. ISBN 978-0-356-03612-0.
