The number of Pal refugees who left the Green Line area is estimated between 600,000 and 720,000. I saw an analysis based on a few lines of calculations which indicates the correct number as 600,000. Anything below that is just a dream, or silly sophistry. For example, Nadav's claim that many refugees settled in the West Bank, part of Mandatory Palestine, and therefore should be classified as Displaced Persons and not Refugees doesn't solve anything. Displaced Persons are entitled at least to even more of a right of return than refugees.
U.S., allies carry out 24 airstrikes on ISIS targets in Iraq, Syria (Reuters)
from the article: Who's afraid of renewing the peace process?