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We are very happy to announce that, as of Monday, Deborah Pearlstein of Princeton University's Woodrow Wilson School of Public and International Affairs will be joining Opinio Juris as our newest (OK, only by two weeks) member. A scholar and practitioner in national security law, Deborah served from 2003 to 2007 as the founding director of the Law and Security Program at Human Rights...

I've been spending more time than is probably healthy over the last year researching the Compact Clause.  Article 1, Section 10 of the Constitution prohibits U.S. states from entering into any "treaty, alliance or confederation" and bans them "without the consent of Congress" from entering "into any agreement or compact with another state, or with a foreign power."  The Supreme Court...

As Texas stays on track to execute Jose Medellin on August 5, it is worth shifting our attention back to Texas.  I've always thought the ideal solution to the ICJ-Vienna Convention conundrum is for each individual state to independently comply with the ICJ's judgment. Although I think the ICJ's interpretation of the Vienna Convention is not entirely persuasive, I think...

As frustration with the Bush administration's War on Transparency continues to mount, scholars and pundits are beginning to suggest that the U.S. should think about creating a South African-style Truth and Reconciliation Commission to investigate the administration's many crimes.  Nicholas Kristof is one example. Richard Clarke is another.  And a third is Katherine Tiedemann, writing in The American Strategist: The South...

The New York Times has a prominent, page 3 international story datelined from the UN by C.J. Chivers, "US Position Complicates Global Effort to Curb Illicit Arms."  Let me step here directly, but I hope carefully, into the international aspects of a very emotional US political debate.  (And thanks to Glenn Reynolds once again for the Instalanche! I also want...

When international lawyers say that sovereignty is a social construction, I doubt any of us mean it as literally as does the Seasteading Institute, an organization founded by Patri Friedman, grandson of Nobel Laureate economist Milton Friedman, and Wayne Gramlich. Their goal is to foster a seasteading movement, people building structures on the high seas that would become independent and...

In conjunction with the announcement of our new partnership with Oxford University Press, Opinio Juris is pleased to roll out our redesigned site. A lot of hard work has gone into the redesign and we want to thank Seth Elalouf of Spacesuit Group Design for his technical and design support during our migration to a new hosting platform and...

Oxford University Press and Opinio Juris have teamed up to re-launch this widely read and influential blog. The new site continues to provide the insight, debate and analysis that you’re used to, but has been enhanced with an easy-to-use interface and additional features. We invite you to re-discover Opinio Juris, with its contributions from leaders in the field and thought-provoking...

I mentioned last month that the ICC Prosecutor, Luis Moreno-Ocampo, was considering bringing genocide charges against Sudanese officials far more senior than Ahmed Haroun, the country's "humanitarian affairs" minister. Well, he's now decided to do exactly that — and his target is no other than Omar Hassan al-Bashir, the President of Sudan himself:The chief prosecutor of the Internationals Criminal...

We greatly appreciate all of the wonderful postings this week on America Between the Wars and thank all of those who participated. We wanted to conclude by touching on two of the issues raised in the discussion. One is the question Matt Waxman raised concerning the future of the U.S. political debate about democracy promotion. The other...

Thanks to everyone for what has been a very enriching discussion so far. I’d like to respond briefly to the thoughtful comments made by Peggy and Chris concerning what the story of these modern interwar years between 11/9 and 9/11 tells us about how to think about America’s role in the world – and whether that can be summed...

I notice that none of us have posted on the Israeli military assault on Gaza.  This is not surprising, there is very little useful to say about it, especially from a legal point of view.  There is something depressingly predictable about the commentary arising out of Israel's military incursion into Gaza.   Critics of Israeli policy in general have denounced the incursion, alleging...