US nuclear forces, 2013.

As of early 2013, the United States has continued to reduce its nuclear stockpile, and retirement alone has accounted for a dip of over 250 warheads since last year. Of the total stockpile of approximately 4,650 warheads, an estimated 2,150 warheads are deployed. The arsenal is composed of roughly 1,950 strategic warheads deployed with approximately 800 missiles and bombers, as well as nearly 200 nonstrategic warheads deployed in Europe. In this article, the authors scrutinize the US nuclear arsenal. [ABSTRACT FROM AUTHOR]