First comes the warning, that disembodied voice over the tannoy: "Your attention please. Air siren in the city. Please move to the shelter on the minus second floor." Then comes the mosquito-like whine of the incoming Russian drones, massing in their ...

At a secret location in rural Ukraine, columns of attack drones are assembled at night and in near silence to strike deep inside Russia. Their targets are strategic: oil refineries, fuel depots, and military logistics hubs. Since the summer, Ukraine's long ...