A third possibility, in very early editions (1980s prints), page 139 deals with the restrictions to the exclusive domain of states , introducing the concept of ius cogens (peremptory norms)—non-derogable principles like the prohibition of genocide or slavery.
The book provides a detailed analysis of terrestrial, maritime, and aerial spaces, including the law of the sea, which is highly relevant for geopolitics. A third possibility, in very early editions (1980s
In an era of digital borders and transnational crimes, the distinction between territorial sovereignty and extraterritorial jurisdiction (which he discusses in the subsequent pages) is more relevant than ever. Seara Vázquez offers the necessary theoretical scaffolding to understand modern disputes over cyber operations and universal jurisdiction. By "stripping away" the purely formalist layers of
Consistent state practice combined with opinio juris (the belief that the action is a legal obligation). A third possibility
. By "stripping away" the purely formalist layers of law, Seara Vázquez presented a system that is in a constant state of transformation, driven by the evolving needs of the international community. Revistas del Instituto de Investigaciones Jurídicas Structure and Core Themes
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