BEIRUT, LEBANON - MAY 15: Demonstrators hold banners and Palestinian flags as they mark the 67th anniversary of Nakba, also known as Day of the Catastrophe near United Nations Interim Force in Lebanon (UNIFIL) headquarters in Lebanon, Beirut on May 15, 2015. For the Palestinians it is an annual day of commemoration of the displacement that preceded and followed the Israeli Declaration of Independence in 1948. Around 800,000 Palestinians had to leave their homes in Palestinian villages and towns for Arab countries Jordan, Lebanon, Syria and Egypt on the heels of Israel's establishment in 1948. (Photo by Mohammed Havila/Anadolu Agency/Getty Images)
