The same if it can say of the definition of a State of peace. In 2002, dissertao of mestrado of this author to the Law school of the USP – ' ' Beddings of the Operations of Peace of the ONU and the Question of Timor Leste' ' it was looked to investigate the diverse meanings of the peace to be able to understand the target of the operations of peace of the ONU. In that study, to understand the diverse meanings of the peace was necessary to identify that type of peace was longed for in formal operations of the ONU that had evolved of initiatives of peacekeeping (maintenance of the peace) for initiatives of peace-building (construction of the peace). In this study in them a chance was presented to advance a little in those reflections more, not only in relation to the operations of peace, but in the search of a definition for ' ' situation of paz' ' that it characterizes a State of peace. In that study, we define the peace under global the structural perspective as ' ' a positive, recognized value, yes, as a insufficient, but basic good for the accomplishment of the intentions of the sustainable economic development, the social progress, justice, the equality between the men, the reciprocal assistance between the Peoples, of the sovereign equality between Estados' '. On the other hand, the peace also can be defined as: ) the internal peace in contraposition to the external peace; b) peace as antithesis of the war; c) the peace as a value and as a perpetual ideal; d) the peace as half or; e) as they prefer Raymond Aron and Norberto Bobbio, as satisfaction or impotence, power peace. They see to follow it some of its characteristics. The internal Peace is the peace of private court of the individual; the external peace, of interaction between the individuals and the groups of which it is part, its community.