Haidar-Pasha, or Haydarpaşa, train station in Constantinople, on the Sea of Marmora at the southeastern end of the Bosphorus. The station was the site of an explosion on September 6, 1917, as the Turks were preparing the Jildirim campaign. Two or three hundred cars of munitions and explosives were destroyed, losses the Turks could ill afford. From Jildirim: Deutsche Streiter auf heiligem Boden, Yildirim: German Soldiers on Holy Ground edited by Dr. Steuber, Chief General Physician, Retired, 1912/18 Army Physician in Palestine.