This report provides basic information about U.S. and Russian nonstrategic nuclear weapons. It begins with a brief discussion of how these weapons have appeared in public debates in the past few decades, then summarizes the differences between strategic and nonstrategic nuclear weapons. It then provides some historical background, describing the numbers and types of nonstrategic nuclear weapons deployed by both nations during the Cold War and in the past decade; the policies that guided the deployment and prospective use of these weapons; and the measures that the two sides have taken to reduce and contain their forces. The report reviews the issues that have been raised with regard to U.S. and Russian nonstrategic nuclear weapons, and summ...