(FILES) In this file photo taken on May 07, 2018 Libyan Strongman Khalifa Haftar salutes during a military parade in the eastern city of Benghazi during which he announced a military offensives to take from "terrorists" the city of Derna, the only part of eastern Libya outside his forces' control. Forces loyal to Libyan strongman Khalifa Haftar were pushed back on April 5, 2019 from a key checkpoint less than 30 kilometres (18 miles) from Tripoli, checking their lightning advance on the capital, a security source said. / AFP / Abdullah DOMA
Libyan military commander Khalifa Haftar salutes during a military parade in Benghazi in May 2018. AFP

Libya's Khalifa Haftar surprises observers with long-expected march on Tripoli