Turkey said Saturday that Washington has pledged to stop giving arms to YPG Kurdish forces in Syria, as Turkey's offensive against the U.S.-backed group there enters its eight day. Turkey's presidency said in a statement that U.S. National Security Adviser H.R. McMaster spoke Friday with Ibrahim Kalin, a spokesman for Turkish President Recep Tayyip Erdogan. McMaster confirmed in the phone conversation that the U.S. would not give weapons to the YPG militia, the statement said. There has been no U.S. confirmation.