Opinio Juris is a forum for informed discussion and lively debate about international law and international relations. It was founded by Chris Borgen, a law professor at St. John’s University Law School, who started the site with Peggy McGuinness of the University of Missouri Law School, and Julian Ku of Hofstra Law School. The site debuted in January 2005. Since then, the Opinio Juris team has expanded to include Roger Alford of Pepperdine University Law School, Kevin Jon Heller from the Law School of the University of Auckland in New Zealand, Duncan Hollis and Peter Spiro, both of Temple University Law School, and Ken Anderson of American University Washington College of Law.

The Opinio Juris team of authors holds a wide range of views from across the political spectrum and brings a range of experience from their pre-academic careers in government, private legal practice and the NGO community. We encourage civil and respectful dialogue among our bloggers, readers (who may post comments), and guest-bloggers. Our goal is to be both informative and thought-provoking by fostering vigorous intellectual engagement without vitriol. The marketplace of ideas is what we make of it.

Watch for Opinio Juris on-line symposia, book discussions, as well as guest-bloggers from government, private practice, international organizations, and academia.

We hope you’ll join the conversation.

This site is not intended to convey legal advice and all disclaimers apply.