out shore bombardment operations. At one stage, on 20 October 1914, after the destroyer Amazon was damaged by German shellfire, Rear Admiral Horace Hood transferred his flag to Cossack. On the night of 26/27 October 1916, German torpedo boats of their Flanders Flotilla carried out a large scale raid into the English Channel, hoping to attack the drifters watching the anti-submarine nets of the Dover Barrage, and to sink Allied shipping in the Channel. Cossack was one of six Tribal-class destroyers waiting at readiness in Dover harbour, and when the Germans attacked the drifters and sank the supporting destroyer , they were ordered to intervene. The six destroyers became separated, and while several of them encountered groups of the German torpedo boats on their return leg, with being badly damaged by a German torpedo and and sustaining lesser damage from German gunfire, Cossack did not engage the German ships. On 1 July 1917, Cossack collided with the transport SS The Duchess near Eastbourne. Cossacks depth charges exploded as a result of the collision, sinking The Duchess and blowing off Cossacks stern. Cossack was towed to Dover for repair. On 16 September 1918, a fire started in one of the magazines of the newly delivered monitor HMS Glatton. In order to prevent an explosion that could affect a nearby ammunition ship, it was decided to sink Glatton. Cossack fired two torpedoes at Glatton, one of which failed to detonate, while the second failed to defeat Glattons anti-torpedo bulge. In the end, Glatton was sunk by 21 inch (533 mm) torpedoes from the destroyer HMS Myngs. Cossack was sold to the shipbreakers Thos. W. Ward on 12 December 1919 for scrapping at their Preston, Lancashire, works. Pennant numbers Notes Citations Bibliography External links HMS Cossack , Index of 19th Century Naval Vessels Tribal-class destroyers (1905) Ships built on the River Mersey 1907 ships World War I destroyers of the United Kingdom