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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.

A large, world-wide community of physicists is working to realise an exceptional physics program of energy-frontier, electron-positron collisions with the International Linear Collider (ILC). This program will begin with a central focus on high-precision and model-independent measurements of the Higgs boson couplings. This method of searching for new physics beyond the Standard Model is orthogonal to and complements the LHC physics program. The ILC at 250 GeV will also search for direct new physics in exotic Higgs decays and in pair-production of weakly interacting particles. Polarised electron and positron beams add unique opportunities to the physics reach. The ILC can be upgraded to higher energy, enabling precision studies of the top quark and measurement of the top Yukawa coupling and the Higgs self-coupling. The key accelerator technology, superconducting radio-frequency cavities, has matured. Optimised collider and detector designs, and associated physics analyses, were presented in the ILC Technical Design Report, signed by 2400 scientists. There is a strong interest in Japan to host this international effort. A detailed review of the many aspects of the project is nearing a conclusion in Japan. Now the Japanese government is preparing for a decision on the next phase of international negotiations, that could lead to a project start within a few years. The potential timeline of the ILC project includes an initial phase of about 4 years to obtain international agreements, complete engineering design and prepare construction, and form the requisite international collaboration, followed by a construction phase of 9 years.