SEOUL, Korea, Republic Of -- A South Korean delegation met with North Korean leader Kim Jong Un on Wednesday during a visit to arrange an inter-Korean summit planned for this month and help rescue faltering nuclear diplomacy between Washington and Pyongyang.
The office of South Korean President Moon Jae-in said the envoys led by his national security adviser delivered his personal letter to Kim and "exchanged opinions" on unspecified issues.
It wasn't immediately clear whether the Korean officials fixed a date for a third summit this year between Moon and Kim or made any progress in breaking an impasse in talks between North Korea and the United States over dismantling Kim's nuclear weapons program. When asked whether the meeting with Kim went well, Moon spokesman Kim Eui-kyeom said he didn't know.
The envoys flew back to South Korea after attending a dinner reception hosted by the North. Earlier on Wednesday, they met Kim Yong Chol, a former spy chief who has been negotiating with the United States on nuclear issues, and Ri Son Gwon, chairman of the North's agency that handles inter-Korean affairs, at Pyongyang's Koryo hotel.
South Korean officials said they couldn't provide further details. Moon's office is planning to hold a briefing on the visit on Thursday.
Moon, who discussed his plans with U.S. President Donald Trump by telephone on Tuesday, said before the trip that his envoys were tasked with a crucial role at a "very important time" that could determine the prospects for lasting peace on the Korean Peninsula.
While pushing ahead with summits and inter-Korean engagement, Seoul is trying to persuade Washington and Pyongyang to proceed with peace and denuclearization processes at the same time so they can overcome a growing dispute over the sequencing of the diplomacy.
Seoul also wants a trilateral summit among the countries, or a four-nation meeting that also includes Beijing, to declare a formal end to the 1950-53 Korean War. The UN General Assembly in late September would be an ideal date for Seoul, but many analysts see that possibility as low, considering the complications of the process and how far apart the parties currently are.
U.S. officials have insisted that a peace declaration, which many see as a precursor to the North eventually calling for the removal of all U.S. troops from the Korean Peninsula, cannot come before North Korea takes more concrete action toward abandoning its nuclear weapons. Such steps may include providing an account of the components of its nuclear program, allowing outside inspections and giving up a certain number of its nuclear weapons during the early stages of the negotiations.
While an end-of-war declaration wouldn't imply a legally binding peace treaty, experts say it could create political momentum that would make it easier for North Korea to steer the discussions toward a peace regime, diplomatic recognition, economic benefits and security concessions.
North Korea has accused the United States of making "unilateral and gangster-like" demands for denuclearization and holding back on the end-of-war declaration. North Korea's Foreign Ministry on Tuesday published a lengthy statement on its website saying that an end-of-war declaration would be a necessary trust-building step between the wartime foes that would "manifest the political will to establish the lasting and stable peace regime on the Korean Peninsula."
South Korean officials said an end-of-war declaration would be among the issues discussed in the meetings between the South Korean envoys and North Korean officials.
"Our government believes that an end-of-war declaration is very much needed while we enter a process toward stabilizing peace in the Korean Peninsula through complete denuclearization," said Chung Eui-yong, Moon's national security adviser and the head of the South Korean delegation to Pyongyang, in a news conference on Tuesday.
"We will continue to put in efforts so that an end-of-war declaration can be reached by the end of the year. We are always maintaining close communication with the United States."
Moon's five-member delegation, which also included his top intelligence officer, Suh Hoon, was the same group that travelled in March to Pyongyang, where they talked and dined with North Korean leader Kim and reached an agreement on the first summit between the Korean leaders in April. The South Korean officials later visited Trump at the White House where they conveyed Kim's desire for a summit, which Trump accepted on the spot.
After their June summit in Singapore, Trump and Kim issued a vague statement about a nuclear-free peninsula without describing when and how it would occur. Post-summit nuclear negotiations between Washington and Pyongyang got off to a rocky start and quickly settled into a stalemate.
While the United States maintains that efforts to improve relations between the Koreas should move in tandem with efforts to denuclearize North Korea, Moon has recently said inter-Korean engagement could take the lead.
"If needed, we should pull forward the negotiations for the complete denuclearization of the Korean Peninsula with the development in relations between the South and North," Chung said.
Any progress could depend on whether Moon's envoys were able to coax a stronger verbal commitment from North Korea on denuclearization to help put the nuclear talks between the United States and Pyongyang back on track.
Trump called off a planned visit to North Korea by Secretary of State Mike Pompeo last month, citing insufficient progress in denuclearization. The resumption of U.S.-North Korea talks sometime before the next inter-Korean summit, which will likely take place in mid-September, could give Moon more to work with when he arrives in Pyongyang.
Considering the difficult circumstances, it's unclear whether Moon's envoys will return with anything other than a fixed date for his new summit with Kim.
The two past inter-Korean summits in April and May removed war fears and initiated a global diplomatic push that culminated with the meeting between Kim and Trump in June. But Moon faces tougher challenges heading into his third meeting with Kim with the stalemate in nuclear negotiations between Pyongyang and Washington raising fundamental questions about Kim's supposed willingness to abandon his nuclear weapons.
Moon has been aggressively pushing engagement with North Korea in past months, but the lack of progress in nuclear talks could mean an end to the inter-Korean detente.
"Now is a very important time for establishing lasting peace in the Korean Peninsula; that's why special envoys are being sent to North Korea," Moon said Monday. "Peace in the Korean Peninsula goes together with the complete denuclearization of the Korean Peninsula, and the government is closely examining and carefully managing the situation."
The Korean War ended with an armistice, leaving the peninsula technically still at war. Moon has made an end-of-war declaration an important premise of his peace agenda with North Korea.