Off the coast of Bulgaria, surface-to-air drones attacked the container ship Liberia-Pele CONTSHIP JET, which was on its way to the Romanian port of Constanța. Bulgaria's Ministry of Defense was hit three times. The crew was saved. Since the beginning of October, unidentified drones have regularly attacked vessels associated with the transport of Ukrainian cargo off the coasts of Romania and Bulgaria. So who is really behind these attacks - and who is going to benefit??