North Korea has declared no-fly and no-sail zones off of its east and west coasts, indicating the Hermit Kingdom is about to engage in major, nationwide military exercises that might include short- and medium-range missile tests.

This follows a North Korean general’s threats that Pyongyang would tear up the armistice that ended the Korean War in 1953, in response to joint South Korean-U.S. military drills that started on 1 March.  This isn’t the first time the North has made that threat.

Some observers insist there is more than meets the eye in this situation.  Ordinarily, North Korea doesn’t announce a precise schedule when it’s about to do something that upsets the world, which might mean that Kim Jong-Un’s government isn’t quite ready to do threaten its perceived enemies just yet.