because Israel is a tiny little state with an insignficant population and almost no natural resources. You like picking on the weak, don't you? Anddon't give me the BS about Israel's powerful military machine. It's only a few hundred thousand soldiers, many of them reservists, who must defend four borders.
Palestinian youths throw stones at security forces in Shoafat, E. Jerusalem; none injured (Haaretz)
from the article: UN passes new nuclear sanctions resolution against Iran