Could automated craft be used like Japanese Shinyo or Kaiten attacks?
Short answerYes, and Ukraine's Russian-speaking networks could make covert operations particularly difficult for Russia to prevent.
NotesAutomated attack craft resembling the role of Shinyo or Kaiten boats are plausible, but machinery is only part of the problem. Many Ukrainians speak Russian fluently and can move through Russian-speaking environments without an obvious language barrier. Forced displacement could also leave people inside Russian-controlled territory who are willing to support covert networks. Those human advantages make infiltration and clandestine maritime attack a persistent security concern.