What are the propaganda slogans involving waters between North and South Korea?

1. After World War II, the 38th Parallel was used as the boundary, but the maritime direction of the 38th Parallel was controversial. North Korea felt that it should go south, and South Korea felt it should go north. This is the disputed sea area where the accident occurred; 2. South Korea is rich but has a sugar daddy. The United States actually controls South Korea, and military bases occupy South Korea's ports and transportation arteries. It has no backbone; North Korea is poor but has backbone, with missiles and nuclear weapons.