Russia's spring offensive in Ukraine expected to focus on 'Fortress Belt' in Donetsk region

Russia's spring offensive in Ukraine is expected to focus on the so-called "Fortress Belt" ​of heavily defended cities in Ukraine's eastern Donetsk region, which Moscow has repeatedly demanded Kyiv relinquish in return for peace. Speaking on FRANCE 24, retired Vice Admiral of the US Navy Robert B Murrett, says that the region is "a veritable highway for any army that wanted to conduct operations further into Ukraine and beyond".