Why was a Jewish nation placed in a territory where Arab communities already existed?

Gosh, why are there more than 1 Islamic country? You're saying it's ok for Islam to insert itself into another country but it's not ok for the Jews? Besides, weren't they there first, being centuries older than Islam? As for the people who not even you care about, if you are condoning the displacement of Eskimos, who are you to talk about the same treatment of ONE of the Islamic countries?