North Korean leader Kim Jong-un condemned South Korean-US military drills and vowed a rapid expansion of his nuclear forces to counter rivals, state media said on Tuesday, as he inspected his most advanced warship being fitted with nuclear-capable systems.Kim’s visit to the western port of Nampo on Monday came as the South Korean and US militaries kicked off their annual large-scale summertime exercise to bolster readiness against growing North Korean threats. The 11-day Ulchi Freedom Shield,...