TUNIS, TUNISIA - MAY 15: Demonstrators hold banners and Palestinian flag as they mark the 67th anniversary of Nakba, also known as Day of the Catastrophe in front of Tunisian city theatre in Tunis 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 Yassine Gaidi/Anadolu Agency/Getty Images)
