For 10 points, name this former Russian president, who now serves as prime minister under his handpicked successor, Dmitry Medvedev.
This man went after the "oligarchs" in his country, such as Boris Berezovsky and Mikhail Khodorkovsky. This man served as head of his country's Federal Security Service. This leader broke the Khasavyurt Accord by sending troops into neighboring Chechnya. In 1999, the unexpected resignation of this man's predecessor, Boris Yeltsin, led to this man becoming president. For 10 points, name this former Russian president, who now serves as prime minister under his handpicked successor, Dmitry Medvedev.
This man went after the "oligarchs" in his country, such as Boris Berezovsky and Mikhail Khodorkovsky.
Vladimir Vladimirovich {Putin}