It's worth keeping in mind that at the 2000 Sydney Summer Olympics, the 2002 Busan Asian Games, and the 2004 Athens Summer Olympics, athletes from North and South Korea all marched together in the opening ceremony under the Unification Flag of Korea.

A map of two Koreas showing North Korea's capital Pyongyang and South Korea's capital Seoul is placed at the Imjingak Pavilion in Paju, South Korea, Wednesday, Jan. 3, 2018.

Mr Trump consulted with South Korean President Moon Jae-in on the matter, according to Pentagon spokesman Colonel Rob Manning.

"We will try to keep close communications with the South Korean side and deal with the practical matters related to the dispatch of our delegation from sincere stand and honest attitude, true to the intention of our supreme leadership", the statement read, quoted by state-controlled news agency KCNA.

"They can talk with whoever they want", she said about North Korea, but made the USA requirements clear.

The Pentagon has said US President Donald Trump has agreed to delay joint military exercises with South Korea until after the Winter Olympics. While many observers focused most of their attention on Kim's threatening message about the "nuclear button" on the desk of his office, the PyeongChang Winter Olympics have to potential to be a breakthrough for the North Korean Crisis.

The president's Tuesday evening tweet came in response to Kim's New Year's address, in which he repeated fiery nuclear threats against the United States.

Trump mocked that assertion, writing, "Will someone from his depleted and food starved regime please inform him that I too have a Nuclear Button, but it is a much bigger & more powerful one than his, and my Button works!"

South Korea and the DPRK restored the inter-Korean hotline of direct dialogue in Panmunjom earlier in the day to discuss details on the proposed inter-Korean talks.

It's worth noting that Kim's latest goodwill gesture toward South Korea was straightforward and unconditional.

The U.S. administration, however, voiced suspicions that Kim was seeking to drive a wedge between Seoul and Washington.

South Korea said it remains open to talking to the North, with which it technically remains at war as the 1953 Korean War armistice was never followed by a peace treaty, and officials have said they understand it may take some time for Pyongyang to review the proposal for talks.

Earlier this week, Nikki Haley, the US ambassador to the United Nations, said Washington had heard reports that Pyongyang might be preparing to fire another missile.

"If the South becomes the North's dialogue partner, the US-South Korea alliance will face difficulties", he said. Moon said that Kim's remarks were "a response to our proposal to turn the Pyeongchang Olympic Games into an epoch-making opportunity to improve inter-Korean relations and establish peace". "No", a North Korean official said, as Yonhap reported, quoting a South Korean unification ministry official.