Sunshine Policy
In May 2017 Moon Jae-in was elected President of South Korea with a promise to return to the Sunshine Policy. In his New Year address for 2018, North Korean leader Kim Jong-un proposed sending a delegation to the upcoming Winter Olympics in South Korea. The Seoul–Pyongyang hotline was reopened after almost two years. At the Winter Olympics, North and South Korea marched together in the opening ceremony and fielded a united women's ice hockey team. As well as the athletes, North Korea sent an unprecedented high-level delegation, headed by Kim Yo-jong, sister of Kim Jong-un, and President Kim Yong-nam, and including performers like the Samjiyon Orchestra. The delegation passed on an invitation to President Moon to visit North Korea. On 1 April, South Korean K-pop stars performed a concert in Pyongyang entitled "Spring is Coming", which was attended by Kim Jong-un and his wife. 
On 27 April, a summit took place between Moon and Kim in the South Korean side of the Joint Security Area. The summit ended with both countries pledging to work towards complete denuclearization of the Korean Peninsula. They also vowed to declare an official end to the Korean War within a year. As part of the Panmunjom Declaration which was signed by leaders of both countries, both sides also called for the end of longstanding military activities in the region of the Korean border and a reunification of Korea. Also, the leaders agreed to work together to connect and modernise their railways.
Organization and Guidance Department
There are those, most prominently the defector Jang Jin-sung, who currently argue that the leaders of the OGD are the real leaders of North Korea, and that Kim Jong-un is a puppet. He argues that Hwang Pyong-so, the First Deputy Head of the OGD, through his post as Director of the General Political Bureau of the Korean People's Army, was the real ruler of the country because (Jang believes) he controlled the appointments and dismissals of military officers. He concluded that Kim Jong-un would remain a puppet as long as Kim Jong-il's old proteges still controlled the OGD. Michael Madden of the North Korea Leadership Watch disagrees, claiming instead that the OGD implements the directives of the Supreme Leader, and is not powerful enough to introduce directives itself. In October 2017 the WPK central committee appointed Kim Jong Un's trusted aide Choe Ryong Hae as director.