North and South Korean soldiers exchange gunfire across DMZ

Details: The Joint Chiefs of Staff in Seoul said in a statement that North Korean soldiers fired at a South Korean guard post inside the border zone.

• South Korean troops responded with a total of 20 rounds of warning shots on two occasions before issuing a warning broadcast, per AP.
• South Korean officials believe North Korea’s firing was not a calculated provocation, though the Seoul military reported that it will continue examining whether there was any motivation for the action.

Background: The DMZ is the most militarized border in the world, acting as a 155-mile-long buffer zone between the two countries with mines, guard posts and nearly 2 million troops on both sides.

• North and South Korea began destroying some guard posts and eliminating mines in 2018 in an effort to reduce tensions, but diplomacy has stalled since the breakdown of nuclear talks between Kim and President Trump.

The big picture: The exchange comes a day after North Korea broadcast a video of Kim visiting a fertilizer factory near Pyongyang.

• It was his first public appearance in weeks amid speculation about his health and whereabouts.
• A senior South Korean official said Sunday Kim Jong-un did not undergo surgery or any other medical procedure as earlier reports had indicated, Politico reports.