International Security & Defense

Europe after the Russo-Ukrainian War must develop a new security structure to defend against any Russian aggression. The safest option is a non-offensive, confidence-building defense. This option includes proposals such as the “spider in the web” strategy and the “porcupine” strategy to provide for European security in a region threatened by Russian expansion—without relying on the threat of nuclear war. 

The half-century since the official demise of the Bretton Woods system of fixed exchange rates has shown the benefits of what replaced it. While some may feel nostalgic for the postwar monetary system, its collapse was inevitable, and what looked like failure has given rise to a remarkably resilient regime.

With rational decision-making, the likelihood of strategic nuclear exchange should be zero. But emotions can create uncertainty, contradicting the expectations of the rational cost-benefit assumptions undergirding deterrence theory.

As the best documented major crisis in history, in substantial part because Kennedy secretly taped the deliberations in which he and his closest advisers were weighing choices they knew could lead to a catastrophic war, the Cuban missile crisis has become the canonical case study in nuclear statecraft. Over the decades since, key lessons from the crisis have been adapted and applied by the successors of Kennedy and Khrushchev to inform fateful choices.

Last week, U.S. Sen. Joe Manchin seemingly dashed Democrats’ hopes for congressional action to slow climate change. Sen. Bernie Sanders accused Manchin of “sabotag[ing] the president’s agenda”; Rep. John Yarmuth, when asked about the consequences of Congress not acting on climate change, said, “We’re all going to die”; and climate activists, as well as some Democrats in Congress, wondered if Manchin should be removed as chair of the Senate Energy and Natural Resources Committee.

Russia’s belligerence against Ukraine is underscoring once again the inextricable link between national security and energy security. Today, Russia is flexing its energy dominance over a dependent Europe. But tomorrow, the danger may come from China and its control over the raw materials that are key to a clean energy future.

The United States and its allies must ensure that doesn’t happen.

The Economic Diplomacy Initiative (EDI) at the Belfer Center for Science and International Affairs is presenting a first-of-its-kind analysis of the makeup of the Commerce Department’s Entity List, by country, by sector, and by year of addition. Starting with raw data made available by the Commerce Department, we manually grouped blacklisted sub-entities at the parent level to give a clearer view of the companies targeted by export controls. While  the Entity List does not include industry tags, we used Federal Register announcements and secondary research to manually assign industry sectors to each entity. The analysis provides a quantitative review of the evolving use of the entity list to shed light on shifting aims of US economic and national security policy.

Every president serving in the last two decades has said that nuclear terrorism is a significant national security threat. Analysis of this threat has been, for good reason, mostly focused on foreign extremist groups, but recent events raise questions of whether there should be greater focus in the United States on far-right, domestic extremist threats. These extremists represent a unique danger because of their prevalence in federal institutions such as the military and the potential that they might infiltrate nuclear facilities, where they could access sensitive information and nuclear materials.

Tongfi Kim and Andrew Taffer respond to Ketian Zhang’s summer 2019 article, “Cautious Bully: Reputation, Resolve, and Beijing's Use of Coercion in the South China Sea.”

In this podcast, hear the dramatic story of how we were able to denuclearize three countries in three years, directly from the participants: Senator Sam Nunn, Secretary William J. Perry, Secretary Ash Carter, and Dr. Elizabeth Sherwood-Randall, one of the key members of the U.S. team.