North Korean leader Kim Jong Un personally oversaw a “launching drill” of the country’s most powerful solid-fuel intercontinental ballistic missile, state media said Tuesday. “A drill of launching ICBM Hwasongpho-18 was staged as an important military action to clearly show the DPRK’s nuclear strategic forces’ overwhelming counteraction will and matchless strength to the enemies,” KCNA news agency said of the Monday launch, using the acronym of the North’s official name.