World War 1, Eastern Mediterranean, Gallipoli, Helles, Seddul Bahr, 1915

Sedd el Bahr, meaning "Walls of the Sea" is a village located at Cape Helles on the Gallipoli peninsula in Turkiye. The village lies east of the cape, on the shore of the Dardanelles. It was the site of V Beach, the landing zone for two Irish battalions, including one from the SS River Clyde, on 25 April 1915 during the Gallipoli Campaign in World War I.
At the tip of the Sedd el Bahr promontory is the castle (Sedd el Bahr Kale), also known as Old Castle. The British designated the castle "Fort No. 3" . At the other end of V Beach was "Fort No. 1", also known as Fort Ertuğrul; it was equipped with ten artillery pieces, including two 28 cm Krupp L/22 guns. The castle was bombarded by the Royal Navy on 3 November 1914, causing serious damage and killing 86 Ottoman soldiers.
The British attacked the Ottoman forts on 19 February 1915 at the start of the naval operations in the Dardanelles Campaign. Sedd el Bahr was subjected to repeated bombardment and raids by naval demolition teams and the position was deemed too exposed. By the peak of naval operations on 18 March, Sedd el Bahr and Kum Kale, across the straits, had been eliminated as threats.