From 11 to 25 July 2000, the Middle East Peace Summit at Camp David was held between United States President Bill Clinton, Israeli Prime Minister Ehud Barak, and Palestinian Authority Chairman Yasser Arafat. The talks ultimately failed with each side blaming the other. There were four principal obstacles to agreement: territory, Jerusalem and the Temple Mount, refugees and the right of return, and Israeli security concerns. Disappointment at the situation over the summer led to a significant fracturing of the PLO as many Fatah factions abandoned it to join Hamas and Islamic Jihad.