During the MADEX 2025 (Maritime and Defence Exhibition) arms fair, held on 28-30 May 2025 in Busan, South Korea, the government's Agency for defence improvement revealed that it is in the process of building a supercavitation torpedo. The Koreans presented not only the torpedo itself, but besides a movie made during its actual tests. This means that the first nonsubjective of the programme has already been achieved, namely the improvement of a technology to control the stabilisation of consecutive traffic under supercavitation conditions, at advanced speed