(FILES) In this file photo taken on May 16, 2017 US President Donald Trump and Turkish President Recep Tayyip Erdogan speak to the press in the Roosevelt Room of the White House in Washington, DC. Facing a backlash for appearing to greenlight Turkey's assault against Kurdish forces in Syria, President Donald Trump on October 11, 2019 dialed up pressure on America's NATO ally by threatening crippling sanctions. / AFP / SAUL LOEB
US President Donald Trump with Turkish President Recep Tayyip Erdogan in Washington DC in 2017. Saul Loeb / AFP

Turkey is testing Nato alliances in its pursuit of the Kurds