In pics: Russian opposition leaders who are still alive but behind bars

Vladimir Putin is anticipated to clinch his fifth term as Russian President this month, following the tragic demise of opposition leader Alexei Navalny in prison. Navalny's death has profoundly affected Kremlin critics, raising apprehensions about the well-being of other incarcerated dissidents. Over his 24-year rule, Putin has transitioned from tolerating dissent to actively quashing anyone daring to challenge his authority. In the last decade, his administration has curtailed freedom of speech and assembly, targeted individuals perceived as threats to the Kremlin, and limited access to numerous independent news sources, reported AP.