Our options in North Korea are very limited, they have thousands of artillery guns aimed at Seoul. One wrong move and South Korea’s capitol gets blasted.
SK has had decades to gradually move its capital south out of artillery range. If I lived in SK it sure would not be near the border!
Seoul and the surrounding areas have over 25 million people. The population of S. Korea is over 50 million. So about half the population lives around Seoul. It is only about 35 miles south of the DMZ and in range of the Nork’s arty. I would not want to be in Seoul when the balloon goes up.