Russia–United States relations when Russia and Georgia fought a five-day war over the Russian-backed self-proclaimed republics of South Ossetia and Abkhazia. Despite U.S.–Russia relations becoming strained during the Bush administration, Russian president Dmitry Medvedev (president from May 2008 until May 2012, with Vladimir Putin as head of government) and U.S. president Barack Obama struck a warm tone at the 2009 G20 summit in London and released a joint statement that promised a "fresh start" in Russia–United States relations. The statement also called on Iran to abandon its nuclear program and to permit foreign inspectors into the country. In March 2009, U.S. Secretary of
Russia–South Ossetia relations Medvedev and the Russian Federal Assembly for official recognition of their independence as sovereign states. President of South Ossetia Eduard Kokoity flew to Moscow on 23 August 2008 to deliver South Ossetia's appeal in an address to the Federation Council. After hearing the appeals from both the Abkhazian and South Ossetian leadership, on 25 August 2008 the Federation Council and State Duma passed motions calling upon President Medvedev to recognise the independence of the two regions and to establish diplomatic relations with them. On 26 August 2008, President Medvedev signed presidential decrees recognising the independence of Abkhazia and South Ossetia