Abstract: This article is dedicated to examination of the process of evolution of Bolivarian regionalism, which implies the Venezuela’s policy in Latin American and Caribbean basin. The author analyzes the various instruments and mechanism of the regional policy of Venezuela created in the XXI century. This work considers only such regional formation, in which Venezuela unequivocally plays the leading role. In the course of the research, the author highlights the development stages of Bolivarian regionalism, as well as analyzes the factors of its decline. Methodology is structure on the historical approach and interviews conducted by the author with the former representative of administrative office of Ecuador’s President and acting representatives of the Ministry of Foreign Affairs of Uruguay, who expressed their position regarding the subject of research. The scientific novelty consists in systematization of the already existing scientific conclusions made by the Russian and foreign experts, as well as detalization of aspects that have not yet received proper attention. Within the framework of this study, the author determined the main stages of evolution of the Bolivarian regionalism.

Abstract: The article explores the process of formation and evolution of the nuclear non-proliferation regime in Latin America and the Caribbean region. The key subject is the Tlatelolco Treaty on the establishment of a nuclear-weapon-free zone and the evolution of positions of the countries of the region towards it. The author analyses the challenges faced by the regime during the formation period, studies the positions of countries unwilling to sign or ratify the treaty, and considers new challenges and threats to the nuclear non-proliferation regime that the region faces today. The methodology of the study is based on the historical approach and the theory of regimes. The Cambridge textbook on Theories of International Regimes which accumulates all most significant studies in this field is used as a methodological tool. The scientific novelty of the study lies in combination of history of the nuclear non-proliferation regime formation in Latin America and the Caribbean region and the contemporary challenges analysis. The following conclusions were made as a result of the study - Today the regime has no opposition at the regional level and the threats that were particularly important at the time of the regime formation no longer stand on the agenda.  - The region is one of the leaders of the movement against the proliferation of military nuclear technologies. - Latin America and the Caribbean region face new challenges typical of the international non-proliferation regime, the most critical of which are cybercrime and natural disasters.