— "Nakba" is the Arabic word for "catastrophe."
— Palestinians regard the creation of the state of Israel in 1948 a catastrophe because hundreds of thousands of Palestinians fled or were forced from their homes during the two-year war that followed.
— Hundreds of thousands of Palestinian refugees still live in camps in the West Bank, Gaza Strip, Syria, Lebanon and Jordan. Only Jordan has offered them citizenship.
— Estimates of the number of Palestinian refugees and their descendants range from 5 to 7 million.
— Palestinians demand the "right of return" of all the refugees and their descendants to their original homes in present-day Israel.
— Israel has offered to take in a small number of refugees but insists that the rest must be resettled in a Palestinian state that will be created in a peace accord or in the countries where they now live.
— The refugee issue is one of the toughest in Israel-Palestinian peace negotiations.