Genocides can just be stopped, not prevented. To prevent genocide is impossible not in a military way but in logic. If it is prevented, then there is no proof that it would have happened. It is more easy to discuss accusations of genocide after the incident has happened. Many claims against Israel were evidentially cynical propaganda, repeated day and again mostly by those lusting for genocide against Jews in Israel. But: professional research would know about the character of these accusations and about the character of the Israeli army (maybe the most disciplined army worldwide) and therefore we can regard these accounts as highly unlikely if conveyed, though we have to examine any of the accusations for the sake of scientific integrity. While scientists and journalists now have gained profound insight into genocides in Turkey, Germany and Japan (both perpetrators of manyfold Genocides), Cambodia, Rwanda and Darfur (and organized mass-murders which were categorized apart from genocide like the Gulags in the Soviet-Union, the US’ Carpet-Bombing in Laos, Cambodia and Vietnam, the Culture-Revolution in China, the war against and of Guerrillas in Indonesia, Guatemala, Peru, Columbia etc.) we can clearly define characteristics and conditions of a Pre-Genocide-Situation – and most are given in Libya.