How Vladimir Putin, a former KGB agent, rose to power and transformed Russia. We hear eyewitness accounts of Putin's war in Chechnya, his campaign against Russia's independent media, and the war in Georgia, which became a blueprint for the invasion of Ukraine. Plus the BBC's Russia specialist Lucy Ash tells us why Putin was shaped by his experience of the end of the Cold War, and we talk to Dr Katerina Tertytchnaya of UCL about Putin's popularity and a turning point in Russian popular protest.

Photo: A Russian soldier walks through the streets of the destroyed Chechen capital Grozny, February 25, 2000. (Photo by Oleg Nikishin/Getty Images)