SEOUL: North Korean leader Kim Jong Un called on Tuesday (Aug 19) for the "rapid expansion" of the country's nuclear weapons capability, citing ongoing US-South Korea military exercises that he said could "ignite a war". "The US-ROK intensified military nexus and the muscle-flexing are the most obvious manifestation of their will to ignite a war," Kim was quoted as saying by the official Korean Central News Agency (KCNA). "The prevailing situation requires us to make a radical and swift change