Since the second world war multiple organizations have fought for world peace and stability.  Regardless of organizations and world leaders attempts to avoid a large-scale armed conflict, in February 2022 the tense situation in Ukraine evolved to an armed conflict, when Russia launched a military offensive. This paper aims to examine two organizations, the European Union (EU) and the Organization for Security and Co-operation (OSCE), conflict preventive actions regarding the conflict in Ukraine. The theory regarding conflict preventive actions takes stand from the organization Carnegie and their report on the subject. Results of the analysis reveal that both organizations use measures from Carnegie’s theory about conflict prevention. The organizations show two different centers of gravity regarding the measures, where none of them uses all the seven measures from the theory. EU´s shows a center of gravity on the preventive diplomacy and economic action. Whereas OSCE’s center of gravity are political-institutional actions, early warning and early actions. Conclusions can be drawn from the different type of organizations and their possibilities to use different measures. This also shows the need for involvement of multiple organizations in conflict prevention, to be able to manage all measures. / <p>2022-05-25</p>