The modern Russo-Ukrainian war is changing all the rules on the battlefield. While in 2022, traditional means of destruction — such as aviation, artillery, and tanks — played a key role, now everything is different. The main strikes are carried out by drones, which have effectively replaced artillery and, to some extent, cruise missiles, and now fulfill the roles of both infantry and mortar units. Drones — a cheap yet extremely effective product — are effectively nullifying all previous military experience. A successful operation by Ukrainian special services to destroy Russian strategic aviation shows that drones can be used anywhere, under any conditions, to hit any targets. This is an entirely new war, and since 2022, its tone has been set by Ukrainian engineers, enthusiasts, and military personnel. Kyiv Post visited one of the drone factories and took a look inside.