According to information published by the Yonhap News Agency on January 13, 2021, South Korea plans to conduct tests of its new local-made submarine-launched ballistic missile (SLBM) in 2021, after successfully tests of the surface-to-surface version.
The new submarine-launched ballistic missile developed by the South Korean defense industry is based on the surface-to-surface Hyunmoo-2B ballistic missile.
A submarine-launched ballistic missile (SLBM) is a ballistic missile capable of being launched from submarines. Modern variants usually deliver multiple independently targetable reentry vehicles (MIRVs) each of which carries a nuclear warhead and allows a single launched missile to strike several targets. Submarine-launched ballistic missiles operate in a different way from submarine-launched cruise missiles.