<span style="color: #222222;">US Defence Secretary Mark Esper has said, he wants an explanation from Ankara over threats to close two strategic military bases used by the United States in Turkey. Turkey's President Recep Tayyip Erdogan on Sunday had threatened to close the Incirlik and Kurecik bases while speaking to a pro-government television channel. The two bases sit on Turkey's southwest coast, near the border with Syria.</span><br />'' <span style="color: #222222;">  </span><br />'' <span style="color: #222222;">The US air force uses the air base at Incirlik for raids on positions held by the Islamic State (IS) group in Syria. The Kurecik base houses a major NATO radar station.</span><br />'' <span style="color: #222222;">  </span><br />'' <span style="color: #222222;">Esper told reporters that he would need to speak to his counterpart, Defence Minister Hulusi Akar, to understand what they really mean. </span><br />