Now let's get to know more about Kim Yo Jong and Kim Yong Nam, the two key members of the DPRK high-level delegation. Kim Yo Jong is said to be very close to her brother, DPRK leader Kim Jong Un. They studied together in Switzerland from 1996 to 2000. She is currently an alternate member of the country's politburo and is reportedly in charge of arranging her brother's "field guidance" trips and publicity. She is the first immediate member of the Kim family to set foot in the south after the Korean War in 1950s. The 90-year-old Kim Yong Nam is the country's top legislator. He has held the position for two decades and served late leaders Kim II Sung and Kim Jong II. Kim Yong Nam is also a veteran diplomat. He attended the Sochi Winter Games in 2014, and the 2015 Bandung Conference in Indonesia, for African and Asian leaders.