Drone warfare stalls progress on Ukraine’s front line

Some 35 kilometres north of Kharkiv with the Russian army at a distance, the soldiers of the 127th brigade are waging electronic warfare. Over three years, artillery combat has given way to drone warfare, including troop surveillance and the threat of kamikaze drone attacks. As a result, the front line is frozen: Ukrainian soldiers are buried in trenches, and rotations of personnel and medical evacuations have become extremely dangerous. Our correspondent reports.