In this article, the potential of Satellite Remote Sensing (SRS) for large-scale monitoring of archaeological sites is analysed. This analysis focuses on the Portuguese Lower Alentejo region, where multiple sites have been destroyed over the last years, mainly due to intensive agriculture. The development of a surveillance system based on data from the Sentinel 1 and Sentinel 2 satellite constellations, named SENSEOS, had its pilot application in this region during the first half of 2019. In a vast region where authorities lacked the proper resources to timely detect events endangering the integrity of heritage sites, this system tried to overcome these issues. By using Synthetic Aperture Radar (SAR) and optical data, it was possible to detect such events through a technique labelled Normalized Difference Amplitude Index (NDAI). The identification of these changes on the surface, associated with potentially destructive events, contributed to minimize the damage and destruction of archaeological sites.

The precautionary principle, invoking the notions of risk, scientific uncertainty and irreversible damage, takes the solution of the environmental issues of the global risk society to the legal domain. Its application in international law has evolved significantly, especially with respect to the protection of the marine environment. This principle, which was much ignored in its practical application, is gradually being used in international environmental protection. The purpose of this paper is to analyze how the jurisprudence of the ITLOS has contributed to the development and application of the precautionary principle for the protection of the marine environment and how the International Tribunal for the Law of the Sea contributed to the development of this principle in international law. Thus, although we are still not able to safely say that the precautionary approach is included in international law as an unchallenged principle, it has been given great steps over the last few years in this direction. Particularly with the contributions of the international jurisprudence of the ITLOS, the

A cooperação para o combate ao terrorismo, ao separatismo e ao extremismotem sido a preocupação central da Organização para Cooperação de Xangai (OCX),fundada em 2001. No ano de 2017, a Índia e o Paquistão passaram a integrara organização de modo permanente. Entretanto, os dois países apresentamrivalidades históricas desde suas formações como Estados Modernos, em 1947,devido à disputa do território fronteiriço da região de Jammu e Caxemira. Alémdisso, apresentam divergências em temas relacionados à agenda de segurança daOCX, mais especificamente, ao combate de grupos terroristas que atuam no Vale daCaxemira. A datar desse contexto, este artigo busca investigar a Organização paraCooperação de Xangai e sua Estrutura Regional Antiterrorista desde o neoliberalismoinstitucionalista de Robert Keohane, buscando identificar os desafios e possíveiscontribuições para a construção da cooperação visando ao combate do terrorismoentre Índia e Paquistão.

Classification of navies according to their relative power has been a challenge for the academic area that works with issues in the field of Security and Defense. Qualitative ratings have been presented by renowned researchers such as Colin Gray, Hervé Coutau-Begarie and Michael Morris, however these attempts have stumbled in its simplicity and little scope. From studies based on open access sources, this paper tries to develop a comparative methodology that would not only take into account qualitative but also quantitative factors. This innovative method was used to classify the navy of the different states in a ranking of power taking into account parameters such as the number of means, shipbuilding capacity, number of bases and arsenals, naval assets and availability of resources, among others, in order to rank naval powers. This methodology aims to reduce uncertainties in the classification of navies and serve as a reference for future works in the academic area that are dedicated to the fields of Security and Defense.