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Overseas military bases have been the bedrock of the United States' ability to project military power, exert political influence and deter potential adversaries since the Second World War. But fatigue with America's forever wars', as well as more nuanced financial and strategic reasons, has inclined the public and policy community to favour reducing US global military activities and overseas presence. In this Adelphi book, Jonathan Stevenson argues that this desire does not necessarily translate into sound strategy. Overseas bases are a key element of the reassurance required to resurrect and bolster America's reputation among its allies and adversaries. Meanwhile, strategic imperatives and geopolitical realities impose restraints in every theatre. The fluidity prevailing in the Middle East and Indo-Pacific counsels maintaining forward-deployed forces there at roughly the current level. Russia's confrontational posture towards NATO and invasion of Ukraine, as well as NATO's short- and medium-term reliance on US capabilities, require the American presence in Europe to increase and expand eastward. The US should not commit itself to a foreign policy that is heavy on forward-deployed military power and light on diplomacy. But paradoxically, reducing forward military presence may not be consistent with a policy that is less focused on military power as a means of achieving stability and security.

This article analyzes the nature of the conflict generated in South America by the adoption of the new military agreement between the U.S. and Colombia. The article will evaluate the political and the geostrategic implications of this agreement, especially its repercussions for the regional integration process of South America. It will also analyze the stances of the local actors in order to consider prospective scenarios, and will assess the U.S. approach to South American integration under the Obama administration.

This research deals with an energy efficient network for military mobile base station placement. The proposed method is based on minimizing the energy loss of military communication networks where the base station is moving along a preset path and the users are constantly moving in an independent speed and direction. It takes into account the free space loss and the knife edge effect for the energy loss to establish a path weight for the shortest path model. Then, it evaluates the neighboring points to the base station for the energy loss of the network in order to find the position at which the minimum energy loss occurs. The results show a clear energy saving advantage when compared to Lloyd-Max's method

This paper explores the phenomenon of US quasi-bases in Latin America, which are semi-formal agreements that grant the US military tacit access to local military bases without a formal lease. While the importance of formal US bases in the region has dramatically decreased, a network of quasi-bases provides critical support for US antidrug operations from Central to South America. The paper builds on Alexander Cooley's theory of base politics (2008) to explain why formal bases are more difficult to open and maintain as democracy expands in the region, and categorizes previously unstudied quasi-base arrangements. Democratic expansion affects foreign military bases in three ways. Formal base negotiations are likely to succeed if the benefits of hosting foreign bases are not only perceived by the local government but also by the opposition. Conversely, when the benefits are concentrated in the government and its clients, excluded political groups are likely to oppose the base