It seems like every day now that North Korea has some sort of threat, warning, accusation, or other message to send about the "flames of justice" they are ready to hand out to anyone who messes with them. Today's potential targets: Guam and Japan.
The North is still peeved about the (still) ongoing military exercises being run by the United States and South Korea until the end of April. Ever since they began earlier this month, the North has had almost daily complaints about them, arguing that they are an attempt to blackmail and intimidate the DPRK with threats of nuclear retaliation. (The latter part is not entirely untrue.) In response, they've claimed that armistice agreement between them and the South is over and today, they reminded the world once again that they have their own nuclear weapons and aren't afraid to use them:
The U.S. should not forget that the Anderson Air Force Base on Guam where B-52 takes off and naval bases in Japan proper and Okinawa where nuclear-powered submarines are launched are within the striking range of the DPRK's precision strike means. Now that the U.S. started open nuclear blackmail and threat, the DPRK, too, will move to take corresponding military actions.
Precision strike, or no, the North can indeed threaten Japan, and certainly Seoul, with its medium-range missiles and rockets. After so many repeated threats, it's easy to dimiss their chatter for idle trash talk, but with so much military hardware on display lately—Kim Jong-un spent yesterday overseeing mock drone strikes—thing can always get out hand quicker than people expect. Earlier today, the North set off air raid warning sirens, but it's not clear if it was a planned drill, or they legitimately believed U.S. bombers were getting too close for comfort.
The war jitters are also completely understandable when a real legitimate cyberwar is taking place online. Today the South, claimed that yesterday's big cyber attack on their companies actually came from Chinese IP addresses, but haven't abandoned the possibility that they were actually spoofed by North Korean hackers.