The Referendum for Secession and Statehood of Seceded Territories

Abstract

In international law, referendums are frequently discussed alongside the right to self-determination when a territory seeks to secede from its parent state. In such a context, a referendum functions as an “instrument” through which the right to self-determination is exercised, rather than as a source of that right itself. Whether the right to self-determination may be invoked to bring about secession is a matter governed entirely by the applicable rules of international law. Even where international law recognizes such a right, its existence alone does not render a secession lawful, for the referendum through which that right is exercised must independently satisfy legal requirements of its own. Against this background, this article examines the conditions that a secession referendum must fulfil in order to comply with international law. It further addresses the criteria for assessing the statehood of seceded territories, a question that invariably arises once secession has taken place. Drawing on international instruments, customary international law, and the 2014 Crimea case study, the article argues that the legality of a secession referendum calls for a two-tier inquiry: first, whether the secession rests on a valid legal basis under international law, and second, whether the referendum process meets established procedural requirements. Even when both conditions are satisfied, the seceded territory must still fulfil the criteria for statehood under the Montevideo Convention and demonstrate that its creation did not violate foundational principles of international law. The Crimean case vividly illustrates that a failure at any of these stages is sufficient for the international community to withhold recognition of the secession.