Terrorist organizations do not operate in isolation. Instead, they forge alliances with one another, which generate a tight network of intergroup relationships. We argue that these relationships serve to increase group capacity, manifesting itself in the ability of a group to conduct deadly...

The causes and consequences of nuclear proliferation have received a great deal of academic attention. However, nuclear weapons are rarely discussed in isolation in policy circles. Instead, nuclear weapons are relevant as part of a category of weapons of mass destruction (WMDs) that includes...