Difference between defensive support and regime change

Pippa Crerar and Kiran Stacey discuss Keir Starmer’s announcement that British bases in the UK and in the Chagos Islands would be used by the US in their strikes in Iran. Their use is for ‘limited defensive purposes’ but is that enough to stop Britain being dragged further into war? What is the extent of the UK’s involvement in the Middle East war?. Help support our independent journalism at theguardian.com/politicspod