The Bible and the Koran recognize the land is properly the homeland of the Jews. No other state in the world has the deep historical legitimacy of Israel. From a legal perspective, the land was ruled by the Ottoman Empire. The UK in WWI issued the Balfour declaration saying the land should be the home of a Jewish state. The San Remo conference of WWI victors removed the land from Ottoman control and declared all of modern day Israel and Jordan to be the future homeland for a Jewish state. The League of Nations gave the UK the mandate to develop the land as a state for the Jewish people. The nations of Lebanon, Syria, and Iraq were also carved out of Ottoman territory and legally declared by the League of Nations to be the sites of future nations. The state of Israel has at least as much legal foundation as all these Arab nations. The Palestinians are not mentioned in the Bible or the Koran, nor by the Otttomans, nor in any international legal document that established states after the defeat of the Ottomans in WWI.