Over half of Gaza population are refugees or their descendants that left Israel after it became a state but before 49 crease fire. Israel refused to let them return then claimed their land as abandon under a then new law. Many Jews were then kicked out of Arabs countries in reaction to this, other had lost everything to the Nazi over the decade before. Israel help create this problem but others had a large hand in this also. Most in Gaza want the refugees resettled but no one is willing to give up land for settlements, including Israel and the PA. Having lived in camp most or all their lives, the current solutions to peace do them little good and no where to go, since they are not citizens of Gaza or W. Bank and Israel will not let them return.
UN to hold off on separate Afghan bombing probe for now (Reuters)
from the article: Rights groups: World has betrayed the citizens of Gaza