They pushed their little bitty (18 foot) boats into Russia's great big boats, blew them up, and then sank them.
That is pretty pushy.
Apparently, it is spreading around the world:
Taiwan’s Ukraine-Inspired Kamikaze Boat to Harass Chinese Warships
https://theaviationist.com/2024/06/05/t ... aze-boats/
It would be pertinent to note that another multipurpose USV (Unmanned Surface Vessels) developed by the NCSIST (National Chung-Shan Institute of Science of Technology) is remotely controlled and has been inspired by Ukraine’s use of USVs in the Black Sea. Kyiv has successfully sunk many Russian warships since mid-2023.