North Korean state media warned on April 11 of a nuclear attack on the United States at any sign of American aggression as a U.S. Navy strike group steamed toward the western Pacific.
Reuters: North Korea state media warns of nuclear strike if provoked
This undated photo released by North Korea's official Korean Central News Agency (KCNA) on July 21, 2016 shows a missile fired during a drill by Hwasong artillery units of the Strategic Force of the Korean People's Army.