Russian President Dmitry Medvedev (L) holds a press briefing with US President Barack Obama in London on April 1, 2009 after preliminary talks during the G-20 summit. US President Barack Obama and Russian leader Dmitry Medvedev agreed in a joint statement to launch talks on potentially far-reaching reductions of their nuclear arsenals. Getty Images logo Getty Images 7 months ago

Russian President Dmitry Medvedev (L) holds a press briefing with US President Barack Obama in London on April 1, 2009 after preliminary talks during the G-20 summit. US President Barack Obama and Russian leader Dmitry Medvedev agreed in a joint statement to launch talks on potentially far-reaching reductions of their nuclear arsenals.