Seoul, Feb 25 : US President Donald Trump and North Korean Supreme leader Kim Jong Un could formally declare an end to the 1950-53 Korean War at the Hanoi summit, South Korea said on Monday.
"I believe that the possibility is there," the South's presidential Blue House spokesman Kim Eui-kyeom told reporters about a formal declaration adding that the two leaders could reach an agreement, yonhap news agency said in a report.
"There is no way of knowing what kind of declaration it might be, but I believe the US and North Korea may reach an agreement."
The devastating conflict between communist North Korea, backed by China, and the capitalist South, aided by the United States, ended with an armistice rather than a peace treaty, leaving Pyongyang and Washington still technically at war.
North Korea, the US-led United Nations Command and China were all signatories to the armistice.
President Moon Jae-in said in October that "it was only a matter of time" before Washington and Pyongyang declared an end to the war.
The US has also struck an upbeat tone. Stephen Biegun, the US special envoy for North Korea, said earlier this month that Trump was "ready to end this war", fuelling speculation that the formal end of the conflict may be near.
Earlier in April 2018, the leaders of North and South Korea met at the demilitarized zone and agreed to work towards a treaty to formally end the Korean War.
Kim, the leader of North Korea, is due to meet the US president in the Vietnamese capital on Wednesday and Thursday, where it is hoped the pair will make progress in talks on denuclearisation, and a possible peace treaty.
But Blue House spokesman Kim said even if the US and North Korean leaders declare the end of the Korean War, a formal peace treaty will likely be signed at the "last stage of the denuclearisation process" of the Korean peninsula - and may take a long time to materialise.
"A peace treaty and a declaration of end of war are different," he said, adding that the treaty must be a "multilateral effort" involving South Korea and China.
Observers say tangible progress is needed in Hanoi to avoid the talks being dismissed as a publicity stunt.
The dismantling of the complex is expected to be among the key denuclearisation steps that the US and North Korean leaders will likely discuss in Hanoi.