US President Barack Obama and Russian President Dmitry Medvedev have agreed a new nuclear arms reduction treaty after months of negotiations. The final agreement came in a phone call between the two leaders. The deal replaces the 1991 Strategic Arms Reduction Treaty, which expired in December. It will be signed in Prague on 8 April, the White House said. 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. The US is said to have more than 2,000 deployed strategic nuclear weapons, while Russia is believed to have more than 2,500. Both sides agreed in July to reduce that number to between 1,500 and 1,675 each. added by: 02
