Maybe without Israel, the United States would be faced with increasing cases of terrorism. Or maybe the Arabs would have no reason for their "jihad" aganist the Great Satan.
Seriously, Israel is the front lines, and is the recieving end of much "Arab Street" anger. Islamic world is a failed society, and it is inevitable for them to export their problems throughout the world as that is the case today.
Clearly the IDF is standing guard at the borders of insanity. I only hope the poison of hatred does not contaminate their thinking and orders.