In the last 48 hours thousands of Ukrainians have fled their homeland and crossed into neighbouring Poland, seeking refuge from war and invasion. But millions more remain trapped in the country as Russian forces continue to advance and occupy towns and cities across Ukraine.

Today, world editor for The Saturday Paper Jonathan Pearlman on why Russia’s leader Vladimir Putin is risking it all on Ukraine, and whether economic sanctions will be enough.

Guest: World editor for The Saturday Paper, Jonathan Pearlman.

Stay in touch with us on Twitter and Instagram

See omnystudio.com/listener for privacy information.