Addressing Unresolved Challenges in U.S.-Russia Relations

... larger global shifts. The international community has done a decent job of preventing horizontal nuclear proliferation. This relative success has resulted from the presence of legal, political, and normative barriers in the Non- Proliferation Treaty (NPT) framework; the United States’ ability to make allies feel secure enough not to pursue nuclear capabilities; and the sense that clandestine nuclear development will be caught—largely because the United States and Russia have historically been ...