Israel was attacked on a scale it had not experienced in many years, by a non-state actor whom it regarded as threatening but at the same time isolated and in a sense controlled. However, it is presently not easy to full and comprehensively explain neither the reasons for the surprise nor to indicate a uniform answer to questions about the future improvement of accidents. However, it is tempting to point out a fewer diagnoses against possible assessments of Hamas terrorists in the first phase of their attack. How and effort a cursory diagnosis of the causes of the defeat of the Israeli side.