Jolie spoke at Jordan's largest camp for Syrian refugees today, which she visited as special envoy for the United Nations refugee agency.
"I appeal to the world leaders - please, set aside your differences, unite to end the violence, and make diplomacy succeed," she said, drawing attention to the UN's World Refugee Day.
Jordan hosts more than half a million displaced Syrians including 185,000 in Zaatari camp, which Jolie visited along with UN High Commissioner for Refugees Antonio Guterres and Norwegian Foreign Affairs Minister Espen Barth Eide.
