Egypt's President Abdel Fattah el-Sisi has warned of direct military intervention in Libya if Turkish-backed forces continue their advance. Sisi said on Saturday the Libyan cities of Sirte and Jufra, which the Tripoli-based Government of National Accord (GNA) is pushing to capture, are a red line for Egypt, and warned the internationally recognized Government of National Accord (GNA) in Tripoli not to cross the current front line with renegade military commander Khalifa Haftar's eastern-based self-styled Libyan...