Combined, the nine nuclear-armed countries in the world possess nearly 15,000 nuclear weapons. A third of these warheads are awaiting dismantlement; the rest—more than 9,500—are deployed or stockpiled for military use. Russia and the United States control close to 90% of those weapons.

ADAPTED FROM THE ARMS CONTROL ASSOCIATION; DATA FROM HANS M. KRISTENSEN AND ROBERT S. NORRIS; U.S. DEPARTMENT OF STATE.