It's the biggest incursion into Russian territory since World War Two. In this special episode of Reuters World News, we look at how the Kursk offensive) took Moscow and Ukraine's allies by surprise - but risks spreading their forces thin while fighting hots up in the east.)
Visit the Thomson Reuters Privacy Statement, opens new tab) for information on our privacy and data protection practices.
You may also visit megaphone.fm/adchoices, opens new tab) to opt out of targeted advertising.
Learn more about your ad choices. Visit megaphone.fm/adchoices)
