When God gave the land to Israel it isn't considered as illegal occupation. If you don't think God gave the land, read Ezekiel chapters 36 - 38. You will not only see that God did but it also describes what will happen to those who try to destroy Isreal.
Six Palestinians charged with attacking Jews on Jerusalem's Armon Hanatziv Promenade (Haaretz)
from the article: Abbas says willing to meet with Netanyahu during stay in New York