The Royal Navy submarine E11 being cheered by sailors on HMS Grampus as it leaves the Dardanelles on 6 June 1915. [AWM H10287]
On the night of 18 May the Royal Navy submarine E11, commanded by Lieutenant Martin Nasmith, passed through the Dardanelles. This began a tour of operations in the Sea of Marmara and in the Bosphorus during which the submarine sank or disabled 11 Turkish ships. For this Nasmith was awarded the Victoria Cross.