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This week, we are hosting a symposium on Interdisciplinary Perspectives on International Law and International Relations: The State of the Art, edited by Jeff Dunoff and Mark Pollack. Jeff and Mark will introduce the book later today, but here is the abstract: Interdisciplinary Perspectives on International Law and International Relations: The State of the Art brings together the most influential contemporary writers in the...

In From Apology to Utopia, Martti Koskenniemi  mapped how international legal rhetoric can be used to “apologize” for power—to provide a fig leaf over the rude exposure of realpolitik—and how it can be utopian—making rules for a world that does not actually exist.  This week we have had two examples of international law and high politics: President Obama’s speech on Tuesday and Vladimir Putin’s...

In his speech yesterday, Obama predictably took credit for the latest developments regarding Syria's use of chemical weapons: In part because of the credible threat of U.S. military action, as well as constructive talks that I had with President Putin, the Russian government has indicated a willingness to join with the international community in pushing Assad to give up his chemical...

As readers of the blog no doubt know, Syria is is one of seven states that have not ratified the Chemical Weapons Convention (CWC). (The others are Angola, Egypt, Israel, Myanmar, North Korea, and South Sudan.) To consider Syria's use of chemical weapons as a rationale for attacking the country, the USG obviously needs to assume that the use of such...

The legality under international law seemed to play an important role in the U.K. Parliament's deliberations over whether or not to support a strike on Syria.  The UK government issued an (admittedly bare bones) legal opinion which advanced a version of humanitarian intervention. So now that the U.S. Congress has taken up the same question, how important is the U.N....

President Obama's decision to seek authorization for military intervention in Syria is a watershed in the modern history of war powers. At no point in the last half century at least has a president requested advance congressional authorization for anything less than the full-scale use of force. Foreign Policy's David Rothkopf gets it exactly right: Whatever happens with regard to Syria, the...

In a surprise announcement, President Obama announced today that he will seek congressional approval for his plan to launch military strikes against Syria.  This is a smart decision, both politically and legally, since it will force many of his congressional critics to reveal their preferences, and take a position on this very difficult issue.  If they approve the strike, the...

[Jennifer Trahan is an Associate Clinical Professor, NYU Center for Global Affairs, chair of the American Branch of the International Law Association International Criminal Court Committee, and member of the American Bar Association 2010 ICC Task Force] As the U.S. prepares, with or without coalition partners, for a potential military strike against the Bashar al-Assad regime in Syria , it is important to consider the...

We have invited several academic luminaries to post here at Opinio Juris over the next few days about the ongoing situation in Syria. We also are going to follow in our own footsteps from our Kiobel symposium, by inviting young academics and practitioners to submit guests posts for possible publication. We can’t guarantee we will publish every post submitted, but we...

It might be premature to declare the death of the doctrine of humanitarian intervention under international law, but there is no doubt that doctrine suffered a massive blow when the British Parliament voted against a preliminary motion in favor of military strikes on Syria.  To be sure, humanitarian intervention was not directly before the Parliament, but the UK government's international...