Rescuers work at the site of a building damaged by Russian drone strikes in the town of Rzhyshchiv, Ukraine on March 22. Photo courtesy of Emergency Service of Ukraine/EPA-EFE April 4 (UPI) -- Along with the recent reciprocal drone strikes by Iran and the United States in Syria, Russia continues to unleash its arsenal on Ukrainian civilian and military targets alike. While the Russian armies have started using outdated weapons, novel technologies remain the objects of fascination on the battlefield. Hypersonic missiles and nuclear weapons have understandably grabbed media attention. However, drone warfare continues to occupy a central role in...