The first months of the Obama administration have led to expectations, both in the United States and abroad, that in the coming years America will increasingly promote the international rule of law—a position that many believe is both ethically necessary and in the nation’s best interests.

With The Perils of Global Legalism, Eric A. Posner explains that such views demonstrate a dangerously naive tendency toward legalism—an idealistic belief that law can be effective even in the absence of legitimate institutions of governance. After tracing the historical roots of the concept, Posner carefully lays out the many illusions—such as universalism, sovereign equality, and the possibility of disinterested judgment by politically unaccountable officials—on which the legalistic view is founded. Drawing on such examples as NATO’s invasion of Serbia, attempts to ban the use of land mines, and the free-trade provisions of the WTO, Posner demonstrates throughout that the weaknesses of international law confound legalist ambitions—and that whatever their professed commitments, all nations stand ready to dispense with international agreements when it suits their short- or long-term interests.

Provocative and sure to be controversial, The Perils of Global Legalism will serve as a wake-up call for those who view global legalism as a panacea—and a reminder that international relations in a brutal world allow no room for illusions.

The United States spearheaded the creation of many international organizations and treaties after World War II and maintains a strong record of compliance across several issue areas, yet it also refuses to ratify major international conventions like the UN Convention on the Law of the Sea and the Convention on the Elimination of All Forms of Discrimination Against Women. Why does the U.S. often seem to support international law in one way while neglecting or even violating it in another?
The United States and International Law: Paradoxes of Support across Contemporary Issues analyzes the seemingly inconsistent U.S. relationship with international law by identifying five types of state support for international law: leadership, consent, internalization, compliance, and enforcement. Each follows different logics and entails unique costs and incentives. Accordingly, the fact that a state engages in one form of support does not presuppose that it will do so across the board. This volume examines how and why the U.S. has engaged in each form of support across twelve issue areas that are central to 20th- and 21st-century U.S. foreign policy: conquest, world courts, war, nuclear proliferation, trade, human rights, war crimes, torture, targeted killing, maritime law, the environment, and cybersecurity. In addition to offering rich substantive discussions of U.S. foreign policy, their findings reveal patterns across the U.S. relationship with international law that shed light on behavior that often seems paradoxical at best, hypocritical at worst. The results help us understand why the United States engages with international law as it does, the legacies of the Trump administration, and what we should expect from the United States under the Biden administration and beyond.