South Asia

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.

Do U.S. drone strikes fuel militant Islamist group recruitment? New evidence, including a survey of residents of Pakistan’s North Waziristan Agency, suggests not.

Since 2001, the United States has expended vast resources attempting to promote the rule of law in Afghanistan.

Claims that drones will soon remake warfare or international politics are unwarranted. Although almost a dozen states now possess armed drones, and more are racing to acquire them, they will not play a decisive role in interstate conflicts. Drones will rarely be “winning weapons,” because they are vulnerable to air defenses. States will, however, continue to use drones against terrorists and domestic opponents.

The 2016 nuclear security summit was a pivotal moment for the decades-long effort to secure nuclear material around the globe. More than 50 national leaders gathered in Washington for the last of four biennial meetings that have led to significant progress in strengthening measures to reduce the risk of nuclear theft.

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.

Many explanations of Pakistan’s tacit support for the Afghan Taliban emphasize Pakistan’s long-standing rivalry with India. Four other factors, however, have been equally decisive: militarized foreign policy making, links between Pakistani military and Islamist networks, grassroots violence, and Pakistan’s contentious history with Afghanistan.

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.

Many academics and policymakers argue that the removal of leaders is an effective strategy in combating terrorism. Leadership decapitation is not always successful, however. A theory of organizational resilience explains why some terrorist organizations survive decapitation. Application of this theoretical model to the case of al-Qaida reveals that the deaths of Osama bin Laden and other high level al-Qaida operatives are unlikely to cause significant organizational decline.