Massive refugee movements north into China, south across the DMZ into the ROK, and via the East Sea to Japan

Coronavirus may force ROK/U.S. military alliance to contend with North Korean instability
David Maxwell and Mathew Ha
2 days ago

北朝鮮にコロナ蔓延→政権崩壊→内乱→難民流出

というシナリオがあるえるんじゃないか、と。

ちなみに、

Most importantly, the regime received billions of dollars in aid from South Korea from 1997 through 2007 that not only contributed to its survival but also to the funding of its first nuclear test in 2006. This time may be different. The coronavirus could spread too rapidly and overwhelm the North Korean system, and the regime is unlikely to receive the amount of cash aid it did two decades ago.

飢饉が起きるたびに韓国が手助けして、核実験までできるようになったわけですね。