Pyongyang ups rhetoric against rivals' ongoing military drills, warning it will use nuclear weapons if Washington or Seoul attacks; accuses Pentagon of planning regime collapse

Pyongyang shoots ballistic missile into Sea of Japan as 'countermeasure' to military drills in South; South Korean president warns Kim Jong Un is gearing up for 7th nuclear test

Following talks in Tokyo, three nations' deputy foreign ministers say they will ramp up their deterrence in region amid blitz of missile launches from the hermit state

South Korean military says northern neighbor shot off some 250 shells, in second such incident amid series of recent weapons tests held by Pyongyang

Saying it viewed recent naval drills between US and South Korea as threat, Pyongyang says it staged 'the simulation of an actual war' to check and improve its war deterrence

Pyongyang accuses Washington of 'escalating the military tensions on the Korean peninsula'

Tokyo, Seoul and Washington blast 'provocation,' plan to discuss 'appropriate and robust' response to move; IRBM has capability to strike US military bases on Guam

South Korean and Japanese estimate that the ballistic missiles flew 220 to 250 miles at altitude of 20 to 30 miles before landing in waters between Korean Peninsula and Japan

Law will allow Pyongyang to carry out a preventive nuclear strike 'automatically' when a foreign country poses an imminent threat

Speech apparently meant to boost internal unity in the impoverished country amid pandemic-related economic difficulties, and as Seoul strengthens alliance with Washington