Definition: Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].
Input: In barely a month since North Korean leader Kim Jong Un surprised the world and said his nation was ready to join the Games  South Korean President Moon Jae-in has delayed military exercises  feted Kimâs sister at the Pyeongchang Olympics and given conditional consent to a bilateral summit in the North.
âIts delegation and athletes are getting all the spotlight  and Kim Jong Unâs sister is showing elegant smiles before the South Korean public and the world. Even for a moment  it appears to be a normal state.â
Pence cast one of the loneliest figures at the opening event. He remained seated when the joint Korean team entered the stadium  in contrast to Moon who stood along with Kim Jong Unâs younger sister  Kim Yo Jong  to applaud.
South Korean President Moon Jae-in shakes hands with Kim Yo Jong  the sister of North Korea's leader Kim Jong Un  in Seoul  South Korea in this undated photo released by North Korea's Korean Central News Agency (KCNA) February 10  2018. KCNA/via REUTERS
After years of ineffective implementation  those sanctions may have begun to finally bite  which  according to a Japanese government official and experts  helps explain why  Kim Jong Un  agreed to send a national team and  his  sister to the Olympics.

North Korea heads for diplomacy gold medal at Olympics: analysts