A mass rally was held in Kim Il Sung square following the governmental changes in the capital of Pyongyang to celebrate Kim Jon Un.
Thousands of uniformed soldiers obediently celebrated as, in an expected move, Kim Jong Un was elected chairman of the State Affairs Commission at a session of North Korea's rubber stamp legislature that took place on Thursday, Korean Central News Agency (KCNA) said
And for the first time, state media in North Korea now referred to Kim as "supreme representative of all the Korean people."
That title was approved by special decree in February, according to the Associated Press, but has not been used publicly until Friday.
A mass rally celebrating the re-election of Kim Jong Un as North Korea's leader is held at Kim Il Sung square in Pyongyang, North Korea, in this photo released by North Korea's Korean Central News Agency (KCNA)
It's unclear whether the changes will be codified in the constitution, but analysts said the shake-up shows Kim Jong has come to his own, Kim Jong Il, for eight years after his inherited rule from his father.
'The transition and power consolidation of the Kim Jong Un regime is complete,' said Michael Madden, and nonresident North Korea leadership expert with the Stimson Center, a Washington-based think tank.
"This is probably the largest party-government shake-up in many years," he said.
Since early 2018 Kim has embarked on a push for economic development and international engagement, incl Uding historic summits with the leaders of the United States, China and South Korea.
In a message congratulating Kim on his re-election as chairman, Chinese President Xi Jinping said China highly valued its friendship with North Korea and is willing to push forward the bilateral relations, China's foreign ministry said on Friday.
Choe Ryong Hae was named President of the Supreme People's Assembly of North Korea, replacing Kim Yong Nam.
The person holding that position is constitutionally considered North Korea's head of state and usually represents the country at diplomatic events, though experts say real power remains concentrated in Kim Jong's hands.
In this image made from a video taken on Friday, April 12, 2019, by North Korean broadcaster KRT, North Korean leader Kim Young Un clap hands as he stands to deliver his speech at parliament in Pyongyang, North Korea
In this image made from a video taken on Friday, April 12 by North Korean broadcaster KRT, North Korean leader Kim Young Un delivers his speech at parliament in Pyongyang, North Korea
Kim Yong Nam, who was born in 19 28, has been one of the longest serving senior officials, having held the position since it was created for him in 1998, Madden said.
His replacement, Choe, was subjected to political re-education in the past, in recent years appeared to gain more influence since he was promoted in October 2017 to the powerful Central Military Commission, South Korean intelligence officials earlier said.
Choe was one of the three officials sanctioned by the United States in December over allegations of rights abuses
On Thursday President Trump, who has had two summits with Kim to discuss North Korean denuclearization and has expressed his willingness for a third, said Washington would leave sanctions in place.
'I agree with Kim Jong of North Korea that our personal relationship remains very good, perhaps the term excellent would be even more accurate, and that a third Summit would be good in that we fully understand where we each stand,' Trump said in a tweet on Saturday morning
"North Korea has tremendous potential for extraordinary growth, economic success and riches under the leadership of Chairman Kim," Trump continued.
Several officials who have played leading roles in negotiations with the United States were also promoted, including Choe Son Hui, who was named first vice foreign minister and a member of the State Affairs Commission.
North Korea also replaced the premier of its cabinet, an official at the center of efforts to jump-start the economy.
Leader Kim Jong Un has made economic development the centerpiece of his strategy and duty officials this week that building a self-supporting eco nomy would be to the hostile forces that have imposed on North Korea.
Pak Pong Ju had served his current post as premier since 2013.
According to analysts at NK News, a website that monitors North Korea, Pak helped oversee a process of 'radical reform' in the economy that enabled it to survive sanctions.
Among those reforms were loosing control of state-run enterprises, allowing them to operate more freely in the market and to seek private investment, according to a 2017 profile of Pak in NK News
Some of those reforms earned the ire of Kim Jong's father, Kim Jong Il, who suffered North Korea at the time. But the younger Kim has openly embraced many of those market changes, and North Korea has attracted more and more private investment.
Pak will now serve as a vice chairman of the ruling party, meaning that those economic reforms are still being embraced, said Hong Min, senior researcher of Korea Institute for National Unification in Seoul.
'It means Pak Pong Ju-nomics, or Pak Pong Ju-style economic reform is continuing,' he said.
There is little known about Pak's replacement, Kim Jae Ryong, who has been serving as a party leader in Jagang Province, a mountainous area home to some munitions factories.
The province is known within North Korea, however, for having a spirit of overcoming hardship, which may fit with Kim Jong's message of persevering during sanctions, Hong said.