BBC News
26 Mar 2010
US President Barack Obama and Russian President Dmitry Medvedev have agreed a new nuclear arms reduction treaty after months of negotiations.
The treaty limits both sides to 1,550 warheads, about 30% less than currently allowed, the White House said.
The deal replaces the 1991 Strategic Arms Reduction Treaty. It will be signed in Prague on 8 April.
Both sides agreed to cut their arsenals last year, but disagreements on verification have held up a deal.
In a speech in Prague last year Mr Obama set out his vision of moving towards a world without nuclear weapons.
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