President Erdogan has snubbed US national security advisor John Bolton, who was visiting the region to discuss the withdrawal of US troops from Syria and future US involvement there. Bolton asked for assurances that Turkey would not harm Kurdish fighters in Syria in future. He held discussions with Turkish officials, but President Erdogan refused to meet him and described his comments as ‘a serious mistake’, adding: ‘We cannot make any concessions. Those involved in a Syrian terror corridor will receive the necessary punishment.’ A commentator said, ‘Everyone is jockeying for position in Syria because the war is winding down. There is concern over the US leaving Turkey in charge.’