The treatment of the question of jus post bellum in academia is recent, as this concept has really emerged after the interventions in Kosovo (1999) and Iraq (2003). This is why the definition of this concept remains abstract. It is necessary to make conceptual and normative work to define the substance, and this can only be considered as a point of standing out morality and a supposed ancestral lineage with the classic founders of international law to lead to a positive legal policy analysis and a liberal doctrine to determine in what extent it can be applied in specific or general post-conflict situations.