The land they got they bought it. Whose property are you taling about? The robe of Palestine (so called) was after the Arabs decided to exterminate the Jews. They manifested that very clearly. As Benny Morris remarked either we expelled them or they kill us. In this conflict invidual arabs lost properties. Jews lost properties as well. However, the most important point, the palestinians did not lose any country. They did not want one and still do not want one.
Fabius, visiting Tehran, invites Rohani to France (Reuters)
from the article: Mideast peace requires Palestinian self-criticism