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Duke Law

Comparative and Foreign Law

International and municipal law

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Treaty Exit And Intra-Branch Conflict At The Interface Of International And Domestic Law, Laurence R.. Helfer Jan 2018

Treaty Exit And Intra-Branch Conflict At The Interface Of International And Domestic Law, Laurence R.. Helfer

Faculty Scholarship

This chapter, forthcoming in the Oxford Handbook of Comparative Foreign Relations Law, considers two important and unresolved issues raised by unilateral withdrawal from or denunciation of treaties. The first issue concerns whether treaty obligations end in both international and domestic law after a state leaves a treaty. Exit often produces the same effects in both legal systems, but some withdrawals bifurcate a treaty’s status, ending its obligations in domestic law but continuing to bind the state internationally, or vice versa. The second issue concerns denunciations initiated by different branches of government. The decision to withdraw from a treaty is ...


How Asian Should Asian Law Be? – An Outsider’S View, Ralf Michaels Jan 2018

How Asian Should Asian Law Be? – An Outsider’S View, Ralf Michaels

Faculty Scholarship

Is there an Asian identity of Asian law, comparable to European identity and therefore similarly useful as a justification for unification projects? If so, what does it look like? And if so, does this make Asia more like Europe, or less so? Or is this question itself already a mere European projection?

This chapter tries to address such questions. In particular, I look at a concrete project of Asian law unification—the Principles of Asian Comparative Law—and connect discussions about its Asian identity with four concepts of Asia. The first such concept is a European idea of Asia and ...


Treaty Exit In The United States: Insights From The United Kingdom Or South Africa?, Curtis A. Bradley, Laurence R. Helfer Jan 2017

Treaty Exit In The United States: Insights From The United Kingdom Or South Africa?, Curtis A. Bradley, Laurence R. Helfer

Faculty Scholarship

This essay, a contribution to an AJIL Unbound symposium on “Treaty Exit at the Interface of Domestic and International Law,” compares treaty exit in the United States, the United Kingdom, and South Africa. After examining the longstanding practice of unilateral presidential withdrawals from treaties in the United States and the refusal to date of U.S. courts to review the constitutionality of that practice, the essay summarizes recent judicial decisions in the United Kingdom and South Africa holding that parliamentary approval was required before these nations could withdraw from treaties committing them, respectively, to the European Union and the International ...