Palestinians march Wednesday in Gaza City in support of an attempt to reconcile the two main factions. Those factions, Hamas and the Palestine Liberation Organization, have been bitterly divided since 2007. They hope to form a unity government within five weeks. Said Khatib/AFP/Getty Images hide caption

itoggle caption Said Khatib/AFP/Getty Images

Oct. 29, 2004: Palestinian leader Yasser Arafat boards a helicopter in the West Bank city of Ramallah en route to a hospital in France. He died weeks later. Scott Nelson/Getty Images hide caption

itoggle caption Scott Nelson/Getty Images