Solidarity in International Law. Challenges, opportunities and the role of regional organizations

The principle of solidarity is particularly important now because it is injuxtaposition to some current self-centered trends in politics: the crisesthat have upset the world in recent years, such as migrations, hegemonicaspirations, pandemics, and wars, have made self-evident the inadequacyof such selfish politics. It therefore seems very useful to understandthe role that solidarity could play in contemporary scenarios. Thisbook thus collects various contributions on the principle of solidarity ininternational law. Firstly, it reconstructs the foundations of solidarity inlaw and investigates the origins of the principle. Subsequently, it tries toascertain if solidarity exists as a principle in international law and, if so,what its scope is. The book then examines the eventual implementationof the principle of solidarity in regional organizations law: the questionis whether solidarity is more effective and if it is actually better fulfilledwhen relationships between states get stronger, such as in regional andsub-regional organizations. Such implementation is notable in EU Law,but the analysis also involves other regional and sub-regional organizations,namely the African Union, ECOWAS, the League of Arab States,and MERCOSUR. This book takes into account not only some distinctiveareas of solidarity, such as migration law, or specific institutionalcontexts where solidarity is a declared principle, objective or value,for example, the European Union, but it also considers whether, and towhat extent, the manifestations of solidarity differ in disparate settings,trying to discover the reasons behind such divergences.The book will be of interest to researchers and academics in the areasof International Law, International Organizations Law, European Law,Human Rights Law, Business Law, and Constitutional Law.