Yoon Suk-yeol has threatened a pre-emptive attack on nuclear-armed North Korea if necessary. But just who is South Korea's new president Yoon Suk-yeol?
Yoon Suk-yeol, South Korea's next president, is a political newcomer who gained to prominence as a prosecutor for his relentless probes into many of the nation's most high-profile corruption scandals.
He appears to be preparing to steer the world's tenth-largest economy in a new foreign policy direction, vowing to forsake years of caut...
