Vladimir Putin was sworn in on May 7 for a third term as Russian president. He said Russia is entering "a new stage of national development" and that the next few years will be "decisive" for the country. If Putin remains in the Kremlin for two more terms, winning reelection in 2018, he will be 71 when his final term ends in 2024. Here's a look back at a few decisive moments in Putin's political career thus far.