Articles

All the world's nuclear-armed states (except for North Korea) have begun modernizing and upgrading their arsenals, leading many observers to predict that the world is entering a new nuclear arms race. While that outcome is not yet inevitable, it is likely, and if it happens, the new nuclear arms race will be different and more dangerous than the one we remember. More nuclear-armed countries in total, and three competing great powers rather than two, will make the competition more complex. Meanwhile, new non-nuclear weapon technologies — such as ballistic missile defense, anti-satellite weapons, and precision-strike missile technology — will make nuclear deterrence relationships that were once somewhat stable less so.

The fall of Aleppo is a human catastrophe. It’s also a demonstration of the perils of choosing the middle course in a military conflict. Sometimes it’s possible to talk and fight at the same time. But in Syria, the U.S. decision to pursue a dual-track, halfway approach made the mayhem worse.

"In Bargaining on Nuclear Tests the historian Or Rabinowitz demonstrates the rare ability to engage with contemporary policy debates on nuclear proliferation and U.S. nonproliferation strategies on the one hand, and successfully utilize qualitative analytical frameworks in social science like prospect theory (19) on the other."

Blood revenge is a crucial yet understudied contributor to many insurgencies and civil wars. Interviews with participants in and witnesses to the First and Second Chechen Wars reveal how a desire to avenge dead or injured relatives drove many Chechens to join insurgent groups.

Many accounts suggest that the United States did little to prevent Israel, Pakistan, and South Africa from developing nuclear weapons. These accounts are flawed, however. The United States did attempt to stop all three countries from acquiring the bomb and, when those efforts failed, to halt additional proliferation measures such as further testing and weaponization.

Contrary to conventional wisdom, states do not typically construct fortified boundaries in response to border disputes or to prevent terrorism. Instead, most build such boundaries for economic reasons, to keep out unwanted migrants from poorer states. Further, Muslim states are more likely to both build and be the targets of fortified boundaries.

The support of the local business community helped to make Islamists’ a powerful force in the Somali civil war. The Islamists gained business support not because of shared religious affiliation, but because they ran a more stable and less costly protection racket than did other belligerents.

When do states acquire nuclear weapons? History shows that only two types of states decide that the bomb is essential to their security: 1) very powerful states; and 2) weak states that lack ironclad security guarantees.

Why do armed groups switch sides in civil wars? In weak states with few obstacles to switching sides, groups defect for material gain or to acquire military support in local struggles. Such shifts have implications for how long civil wars will endure, how they will end, and the prospects for state building.

Al-Qaida has established a metanarrative that enables it to recruit militants and supporters. The United States and its allies can challenge its ability to do so by delegitimizing the ideological motivations that inform that metanarrative.