"His blood be upon us and our children". This is a line in the Gospel allegedly used by the Jews demanding the crucifiction of Jesus. It has been used for 2000 years as justifcation for the persection of Jews culminating in the Holocost. The Jews learned from that experience that military might is the only road to survival. They are now totally surrounded by hostile "neighbours". I think the murder of 6 million of their people gives them reason to be paranoid about their continued survival.