United Nations (UN) Secretary General Ban Ki-moon (C) tours Al-Bahreen UN school, that is still housing Palestinians displaced from their homes in Shejaiya neighbourhood, during his visit to Gaza City on October 14, 2014. The UN chief's visit to the Gaza Strip came a day after a Cairo conference at which international donors pledged USD 5.4 billion (4.3 billion euros) to rebuild the war-ravaged Gaza Strip. AFP PHOTO / MOHAMMED ABED        (Photo credit should read MOHAMMED ABED/AFP via Getty Images)