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On behalf of all of us at Opinio Juris I would like to thank  Mary Ellen O’Connell having joined us this week in our second Oxford University Press/ Opinio Juris book symposium for a discussion of  her new book, The Power and Purpose of International Law.  We would also like to thank Beth Simmons for joining us as a guest commentor. Thanks also to everyone who posted comments...

Anyone who still doubts that the ICC's pursuit of Bashir is unnerving the Sudanese government should take a gander at this article: An interview with published by Sudan official news agency (SUNA) with British Foreign Secretary David Miliband yesterday is fabricated, according to a statement by the British embassy in Khartoum. “The statements that SUNA news agency attributed to the Foreign Secretary...

My friend and colleague Daniel Bradlow, professor of law and director of the international legal studies program at Washington College of Law, as well as SARCHI professor of development law and African economic relations at the University of Pretoria, has a new short opinion essay on how Africa should respond to the global financial crisis and the deliberations of the...

The power of international law comes from our belief in it and the purposes it serves: the promotion of peace, human rights, prosperity and the natural environment. Beth Simmons in her thoughtful and well-written post suggests that we need empirical evidence of this belief. There is, however, plenty of evidence—indeed, the evidence is overwhelming, if not categorized and precisely quantified. We...

As was widely reported, the United States and Iraqi negotiators (finally!) concluded negotiations last week by signing the text of a U.S.-Iraq Status of Forces Agreement (SOFA).  Both sides now need to go through their respective domestic approval processes before exchanging the necessary notifications to bring the SOFA into force.  In Iraq, that process includes parliamentary approval, which is not a slam dunk if...

[caption id="attachment_5673" align="alignright" width="176" caption="Prof. Joel Trachtman"][/caption] Back in 2005 when Jack Goldsmith and Eric Posner published their book, The Limits of International Law, they garnered a lot of attention for promoting the application of rational choice theory to international law (IL), and, equally importantly, suggesting that this method showed IL to have much less influence than conventional wisdom suggested.  And the...

The Asian Society of International Law announces the "Second Biennial General Conference of the Asian Society of International Law," at the University of Tokyo, August 1-2, 2009, which takes up the important issue of Asia’s relationship with the international legal order under the main theme of “International Law in a Multi-polar and Multi-civilizational World – Asian Perspectives, Challenges and Contributions.” The...

Despite the title of his post, I do not read Chris Borgen as a natural law skeptic! He accepts the existence of norms and principles that must be explained by theories other than positivism. He is just skeptical about the standard approach to explaining the source of natural law, namely, the use of the concept of the common...

Salon.com has an article today about the Obama administration and torture that floats the horrifying possibility -- all too real, I'm sure -- that Bush will issue a blanket pardon for "anyone who participated in, had knowledge of, or received information about Bush's interrogation program during the so-called war on terror."  I'm not going to waste precious pixels responding to...

At risk of distracting us too soon from the merits vel non of natural law, I wanted to take up another piece of Mary Ellen’s account – namely, her fairly positive outlook on the prospects of domestic court enforcement of international law. Despite the subject matter’s placement in the very last chapter of the book, Mary Ellen I think rightly notes:...

In working through an explanation for the source of international law’s authority in the international community, Mary Ellen O’Connell describes the important role of positive law but also shows its limits. For example, it is very hard to imagine a serious contention that it is somehow possible to legalize genocide or slavery through the mere fact of enacting positive law....