This article assesses the theoretical contours and effectiveness of migration governance and diplomacy as an instrument of statecraft in interstate relations. The first part provides an overview of the stakes and challenges of migration within the fields of international relations and political theory. In particular, the category of migration defies the theoretical model of the nationstate, on which traditional IR and political theory are grounded. The second part highlights how the state, through the securitization of migration, uses migration as a tool to reaffirm its defining features: reinforcing its borders, legitimating state sovereignty, and building societal security. The third section demonstrates the usefulness of the category of statecraft within the context of migration governance at a bilateral level owing to the absence of a global normative framework. This relationship can serve different purposes, depending on the context: to harm, to deter, to bargain, to escalate. The last section presents contemporary case studies of the application of migration statecraft by the United States and Russia, as well as by member states along external border of the European Union and within the Schengen space. The elements of "migration statecraft" evidenced by these episodes focus on several objectives: trade blackmail, cooperation in an asymmetrical relation, political threat, and diplomatic escalation for electoral purposes. The variety of these cases illustrates the specificity of statecraft in comparison with foreign policy analysis. While the latter refers to a general and longterm strategy, the former is contextdependent and specific to achievement of a precise desired outcome.
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