Ukrainian soldier Kostiantyn Vlasenko spent 491 days trapped in the drone-filled "kill zone," and months hiding in a hole when he lost both feet after a Russian attack. Just when he had given up hope, his unit sent a giant drone to carry him nearly 10 miles to safety in the first known rescue of its kind in the war. Max Hunder explains. https://reut.rs/3W3JrsK #ukraine #russia #soldier #amputation #drone