North Korean leader Kim Jong Un and his wife Ri Sol Ju greet South Korean President Moon Jae-in and First Lady Kim Jung-sook at Pyongyang Sunan International Airport, North Korea ahead of the third summit with North Korean leader Kim Jong Un in this still frame taken from video Tuesday.
Mr Moon's chief of staff, however, played down the chance that Mr Moon's summit with Mr Kim would produce major progress in nuclear diplomacy.
North Korea's Korean Central News Agency published the statement on Tuesday hours before the Korean leaders were expected to meet in Pyongyang for their third summit this year amid a global diplomatic push to resolve the nuclear standoff.
"Now it's time to bear some fruits", Moon said.
The conflict ended with an armistice, not a peace treaty, leaving USA -led United Nations forces including South Korea technically still at war with the North. Thousands more people, holding bouquets and chanting in unison "Reunification of the country!", lined the streets of the city as Kim and Moon rode through in an open-topped vehicle, passing the Kumsusan Palace where Kim's predecessors - his father and grandfather - lie in state.
Journalists watch a live broadcast of the arrival of South Korean President Moon Jae-in at Pyongyang International Airport, at the press center for the 2018 Inter-Korean Summit in Seoul, South Korea, on September 18, 2018.
The new arts troupe for the third inter-Korean summit was formed just months after the April 2018 summit, which also saw a group of artists travel to Pyongyang.
Prior to Moon's landing, some 90 South Korean officials arrived in Pyongyang on Sunday to participate in the historic summit.
His first meeting with Kim will be held later Tuesday, followed by an official welcome dinner that could possibly be hosted by the North Korean leader, according to Im. National security adviser Chung Eui-young said Wednesday "concrete consultation" is underway to prevent accidental skirmishes in land, air and sea.
But the prospect of broader military cooperation remains unclear. Officials say there has been some progress on that front, as demonstrated by the recent Mt. Kumgang family reunions, and the possibility of future video-calls between separated loved-ones.
"I need you to understand the military is pushing the initiative to the extent that it would not undermine defense posture", Defense Minister nominee Gen. Jeong Kyeong-doo told lawmakers Monday during his confirmation hearing.
Whatever the outcome of the third inter-Korean summit, its impact on the alliance between the US and South Korea is likely to be limited.
South Korea is pinning high hopes on Kim's remarks to Moon's special envoys earlier this month that he wants to achieve denuclearisation within Trump's first term in office ending in early 2021, the first time line he has given.
And investment in the North was "fraught with risks and uncertainty", it added.
"I think the South Korean government isn't being honest with itself about the implications a peace declaration would have for the alliance", said Jackson, warning against the possibilities that the declaration could lead to the withdrawal of U.S. troops in South Korea.
The meeting "will probably generate rosy headlines but do little to accelerate efforts to denuclearize North Korea", Eurasia Group said in a note.
At the summit's conclusion, President Moon may also sign a "comprehensive military agreement".
But hit a roadblock in the summit's wake, with Kim touting steps the North has taken, including the dismantling of nuclear and rocket-engine testing sites, and the White House repeatedly stressing that Pyongyang must first take verifiable steps to dismantle its nuclear arsenal before any further concessions.