"An ISIS commander told The Washington Post on August 12, 2014: "Most of the fighters who joined us in the beginning of the war came via Turkey, and so did our equipment and supplies." "CNN Turk reported on July 29, 2014 that in the heart of Istanbul, places like Duzce and Adapazari, have become gathering spots for terrorists." "An ISIS commander told the Washington Post on August 12, 2014, "We used to have some fighters -- even high-level members of the Islamic State -- getting treated in Turkish hospitals."