North Korea's military guard post is seen through the wire fences in Paju, South Korea, Friday, June 21, 2024. On Friday, South Korea’s military said it had fired warnings shots the previous day to repel several North Korean soldiers who briefly crossed the military demarcation line that divides the countries while engaging in unspecified construction work. Because of an overgrowth of foliage, the North Koreans may not have seen the signs marking the thin military demarcation line that divides the DMZ into northern and southern sides since the 1950-53 Korean War. (AP Photo/Lee Jin-man)