One of my favourite YouTube channels at the moment is the Jolly channel. The main two characters of this are Josh and Ollie (hence Jolly). Josh is quite well known in Korea as the Korean Englishmen as he is fluent in Korean. Occassional guests on his channels are Reverend Chris and Major Charles – one a minister of the church (Church of England I believe) and the other a major in the British Army (Commandos). These two are identical twins. On the Korean Englishmen channel a series has been made where Rev. Chris and Maj. Charles are taken to various places in Korea. One such location was a Korean Army base.
This is one of best episodes I have seen but all are well worth the 10 to 15 minutes each one takes. Enjoy watching “British Twins go Training with the Korean Army Commandos…!!??” on YouTube