You need to read the 1948 Balfour Agreement. Which states unequivocally that Israel can exist ONLY with the agreement of all Arab nationals residing in Palestine. This agreement was never given so the zionists simply murdered and ran out Palestinians who were in the way and unilaterally created Israel. Of course they were never to be satisfied with the Balfour boundaries so have since 1948 have been stealing more and more land from the besieged Palestinians.