Seoul plans to invest $28 billion in increasing the nation's ability to counter Pyongyang’s nuclear missiles and its other provocations, the Ministry of National Defense (MND) said on Wednesday.

The five-year plan, covering the 2017 to 2021 period, includes the introduction of new weapons systems to South Korea such as European-made bunker busters, high-altitude unmanned aerial vehicles (HUAV) and non-lethal weapons for nullifying North Korea's power grids.