Choi Ju-hwal, a former North Korean senior army official who defected to the South Korea in 1995, speaks during an interview with Reuters in Seoul, South Korea, August 18, 2016. Picture taken on August 18, 2016. REUTERS/Kim Hong-Ji

Choi Ju-hwal, a former North Korean senior army official who defected to the South Korea in 1995, speaks during an interview with Reuters in Seoul, South Korea, August 18, 2016. Picture taken on August 18, 2016. REUTERS/Kim Hong-Ji

Choi Ju-hwal, a former North Korean senior army official who defected to the South Korea in 1995, speaks during an interview with Reuters in Seoul, South Korea, August 18, 2016. Picture taken on August 18, 2016. REUTERS/Kim Hong-Ji

August 18, 2016 11:31 AM (UTC+8)