Already severely battered, Russia could have concerns for its cruisers and patrol boats in the Black Sea, dayFREURO reports. Dominant thanks to its swarms of drones and its naval drones, Ukraine is on the verge of a decisive naval revolution. Curiously, the good news comes from the United Arab Emirates, where the Ukrainian company Highlands Systems, expatriated for several years, is reportedly developing a “gliding submarine” called Kronos.