Dmitry Medvedev is a Russian politician who has been serving as the deputy chairman of the Security Council of Russia since 2020. He previously served as the president of Russia between 2008 and 2012 and the prime minister of Russia between 2012 and 2020. Considered more liberal than his predecessor Vladimir Putin, he introduced several liberal programs to modernize Russian economy in order to reduce its reliance on oil and gas. However, most of the reforms he made were promptly rolled back after Putin became the president in 2012. As the president of Russia, Dmitry Medvedev authorized the use of force in the 2008 Russo-Georgian War, steered the country through the Great Recession, and signed the New START nuclear arms reduction treaty with the US. While known for launching an anti-corruption campaign, he himself has been accused of corruption by opposition leader Alexei Navalny.