John Harris is joined by Dan Sabbagh, the Guardian’s defence and security editor, and the Guardian columnist Zoe Williams to talk about Vladimir Putin’s shocking decision to invade Ukraine and its implications for British politics. To hear Guardian columnist Jonathan Freedland and former US ambassador to Nato Ivo Daalder talking about Joe Biden’s response, search ‘Politics Weekly America’ wherever you get your podcasts. Help support our independent journalism at theguardian.com/politicspod