Vladimir Putin takes the oath of office during his inauguration as Russia's president at the Grand Kremlin Palace in Moscow on Monday. Putin will be serving his third term as president, after four years as prime minister and two previous presidential terms.
Credit Dmitry Astakhov, / AP
Riot police detain an opposition supporter during an anti-Putin protest in Moscow on Monday. Tens of thousands of people — mostly young Russians — turned out in protest against Putin on Sunday and Monday.