2) Capacity for action: a) cooperation, b) Operational: International Organizations perform the objectives of the constitutional treaty. The capacity to conclude treaties. Is planned and usually attributed to international organizations in establishing their status, including the capacity or international legal personality. In the treaties establishing international organizations is very common to include explicit references to their skills either: a) with the states, b) with other international organizations. International Organizations and International Responsibility. We study the differences from: 1) Law: a) domestic and international 2) Subject: Passive and active in a wrongful act.