During his election campaign, South Korean President-elect Yoon Suk Yeol had tough words for North Korean leader Kim Jong Un, saying he would teach his rival some manners and sternly deal with his provocative missile tests with a strengthened alliance with the United States.
But as he takes office Tuesday for a single five-year term, the conservative Yoon must now confront an increasingly belligerent Kim, who openly threatens to use atomic bombs and is reportedly preparing for his first nuclear test explosion in four years, part of an effort to build warheads that specifically target South Korea.
