YONGSAN GARRISON, South Korea - Soldiers from the United Nations Command Security Battalion-Joint Security Area held a class about the world's most heavily armed border April 27 for 5th graders at Seoul American Elementary School.

Sgt. Eric M. Horvath, Cpl. Jeong Byung-seok and Pfc. Corey R. Lundgren briefed the students prior to their visit to the Korean Demilitarized Zone and the Joint Security Area.

"This is the only actual combined unit of ROK and U.S in Korean Peninsula," said Lundgren.

Jeong, a member of ROK Army JSA security force, expanded the discussion by adding his opinion as a sentinel who stands on the frontline created by the 1953 ceasefire agreement.

After the briefing, with support from their teachers, the elementary school students sharpened their knowledge about the Joint Security Area.