http://www.naval-history.net/WW1AreaMed1915.htm
5th-15th - Attack on Smyrna, Turkey - Other parts of the Turkish Mediterranean coast are targets for Allied attacks, including the major port of Smyrna, which is to be blockaded because of its potential as a U-boat base. On the 5th, Vice-Adm Peirse, C-in-C Egypt and West Indies station, arrives off Smyrna with armoured cruiser "Euryalus", pre-dreadnoughts "Triumph" and "Swiftsure", a seaplane carrier, and minesweepers. His first tasks are to bombard and destroy the protecting forts and clear the approach minefields, neither of which are accomplished. On the 11th, seaplane carrier "Anne Rickmers", a captured German merchantman, is torpedoed and damaged by German-commanded, Turkish torpedo boat "Demir Hissar". Negotiations for surrender also take place with the Turkish Governor, but without success, and on the 15th, the force withdraws.
April 17th 1915:
17th April - Turkish torpedo boat "DEMIR HISSAR" (1906, 97t, 3tt). The German-commanded vessel, after her exploits off Smyrna, heads into the Aegean. On the 17th, after failing to sink a British transport, she is intercepted south of the Greek island of Chios by British destroyers "Jed", "Kennet" and "Wear" and runs herself aground. Some sources claim protected cruiser "Minerva" forced "Demir Hissar" ashore.
Who commanded the Demir Hissar?