Stephanie Williams, the UN acting special envoy for Libya, said on the 21st that she believed the negotiations between the two sides of the conflict in Geneva, Switzerland were “very optimistic” and that it was expected that the North African country would achieve a lasting cease-fire. < / P > < p > the fourth round of talks of the Libya Joint Military Commission started on the 19th and is expected to last until the 24th. Williams told the media during the talks that the two sides of the conflict agreed to “maintain the current state of calm on the front line and avoid any military escalation.”. The talks will determine the situation in central Libya and lay the foundation for a cease-fire. In August, the government of national unity and the National Congress of Libya announced a cease-fire one after another, calling for the establishment of a demilitarized zone in the central city of Sirte and the holding of presidential and parliamentary elections. According to the acting UN special envoy, the two sides agreed to resume flights connecting the capital of Tripoli and the main eastern city of Benghazi this week to make progress in negotiations on the exchange of detainees. < p > < p > since 2014, Libya has been facing a situation of separation between the East and the West. The government of national unity, recognized by the United Nations, controls the capital, Tripoli and other western regions, and is supported by Turkey, Qatar and other countries. The armed “national army” in the east allied with the National Congress to control the eastern and central regions, the main southern cities and some western cities, supported by the United Arab Emirates and Egypt. Fayyad salaj, Prime Minister of the government of national unity, intends to resign at the end of this month. Williams believes it will help to end the long transition and form a government. Williams asked the outside forces involved in the conflict to “let go”, saying that the two sides had previously agreed that once a lasting cease-fire was achieved in Libya, all foreign troops and mercenaries must withdraw within three months under the supervision of the United Nations. After eight months of armed blockade in the East, Libya’s oil production resumed in August. Libya’s national oil company has warned that the team guarding the field could pose a risk to the field. Williams said both sides agreed to send commanders to work with Libya’s national oil company around a proposal to restructure the watchmen.