The number of strategic, or intercontinental, nuclear arms held by the United States and Russia:

Present, as of July 31, 2001

_U.S.: 7,013, supposed to be 6,000 by year's end.

_Russia: 5,858.

Strategic Arms Reduction Talks (START) III

_1997: Plans discussed by President Clinton and Russian President Boris Yeltsin.

_Status: Unsigned.

_Limit on warheads: 2,000-2,500 by the end of 2007.

START II

_1993: President George H.W. Bush and Russian President Boris Yeltsin sign START II.

_Status: Ratified by both countries.

_Limit on warheads: 3,000-3,500.

START I

_1991: President George H.W. Bush and Russian President Mikhail Gorbachev sign START I.

_Status: Ratified by both countries.

_Limit on warheads: 6,000.

September 1990

_U.S.: 10,563

_Russia: 10,271

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Sources: Arms Control Association, Council for a Livable World Education Fund, Carnegie Endowment for International Peace.