This volume presents a high-level scholarly discussion on whether the concept of solidarity functions as a structural principle of international law and to what extent it has become a full-fledged legal principle. Each contributor addresses these questions by examining normative operations of the principle of solidarity in different branches of international law – including international disaster law, international humanitarian law, the law of development cooperation and international environmental law – as well as the relationship between the principle of solidarity and other legal principles such as the responsibility to protect and intergenerational equity.

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