SEOUL, South Korea (AFP) — South Korea has test-fired a homegrown submarine-launched ballistic missile, a report said Tuesday, as it seeks to build up its forces to defend itself from the nuclear-armed North. Pyongyang has long sought to develop submarine-launched ballistic missile (SLBM) technology, and showed off four such devices at a military parade overseen by leader Kim Jong Un in January, with state media KCNA calling them “the world’s most powerful weapon”. But while […]