German Chancellor Angela Merkel greeted world leaders on Sunday (January 19) as they arrived in Berlin ahead of the Libya summit.
Germany and the United Nations hope to persuade Russia, Turkey, the United Arab Emirates and Egypt to push their opposing camps to agree on a lasting truce in Tripoli, home to the internationally-recognized government.
Turkish President Tayyip Erdogan condemned the international community for not taking a harder line on eastern military commander Khalifa Haftar.
(SOUNDBITE) (Turkish) TURKISH PRESIDENT TAYYIP ERDOGAN, SAYING:
"To achieve peace in Libya, a ceasefire and returning to the political process must be agreed at the Berlin summit. In addition to that, to implement the other stages of the political process and solution, (military commander Khalifa) Haftar's aggressive stance must come to an end."
Haftar, who in April started a campaign to take Tripoli, will be the main focus of the one day summit.
Western powers hope to put pressure on him to continue a ceasefire that has largely held for one week.