The Yesan Municipal Chapter (head: Jeong Dal-soon) of Chungcheongnam-do went on a security field trip to Paju on November 22 with around 100 people, including 95 students and teachers of Sapgyo Middle School.

After visiting the Peace Bell, Freedom Bridge, steam locomotive at Jangdan Station, and Mangbaedan Altar in Imjingak, the students went to DMZ Theater at the 3rd Tunnel and walked along the tunnel. At Dora Observatory, they looked around the DMZ and Gaeseong Industrial Complex using telescopes, enhancing their awareness of security and desire for unification.