>> that was my room right there. >> reporter: even though the base is about 25 miles away from the dmz, safety was never a concern for us that it was a great place to grow up. you were safe. even though you were in the middle of a foreign country in seoul, south korea, i could ride my bike. they would say, go play. >> it's a close kmint. we're proud of it r i visits it. this is my fourth great classroom. >> 30 eyes aelg. >> this was in your >> this would sbrp my classroom. >> it's virtually achallenge. 6. >> can you believe i was ten