SEOUL, South Korea—North Korean leader Kim Jong Un toured the country’s key weapons factories, including those producing artillery systems and launch vehicles for nuclear-capable ballistic missiles, and pledged to speed up efforts to advance his military’s arms and war readiness, state media said Sunday.
Mr. Kim’s three-day inspections through Saturday came as the United States and South Korea prepared for their next round of combined military exercises planned for later this month to counter the growing North Korean threat.
