North and South Korea teams entered together under the Korean Unification Flag during the Opening Ceremony.
Reuters reported Saturday that newfound cooperation between the two countries, which do not now have a diplomatic relationship, began as a result of the South's willingness to allow the North to participate in the Olympic Games activities now being hosted in South Korea.
"We have to put this in context, in the spirit of the Olympics, and why we're here", Warmbier said in a preview clip of an interview with NBC's Lester Holt.
American foreign policy hasn't been heavy on feel-good diplomacy lately, so if you're looking for a heartwarming tale of would-be-enemies putting aside some of their differences in the name of peace, look no further than the Winter Olympics in Pyeongchang. "Their athletes are not exchanging ideas with other athletes in the Olympic Village or really participating, so that's a political statement".
Warmbier said it wasn't tough to watch Kim Yo Jong savoring the event from just a few feet away.
"Seriously, the team. Something that is recognising the sacrifice they made to adjusting their competitions", she said.
The North Koreans earlier Saturday invited Moon to visit Pyongyang in what would be the Koreas' third summit talks since their 1945 division.
LIL' KIM: North Korean dictator's younger sister delivers SHOCK letter to the South
The spokesman says Moon also called for a quick resumption of dialogue between the United States and North Korea. "His visit shows North Korea's wishes to improve inter-Korean relations and for a successful Olympics".
Outside the stadium ahead of the unified Korea Ice Hockey team's first official match of the Olympics, young and old waved the flag as well.
Kim Jong-un's invitation to Moon raises prospects for the first inter-Korean summit in more than 10 years.
"NBC Nightly News With Lester Holt" will air the full interview with Fred Warmbier Saturday night.
It remains unclear whether South Korean president Moon Jae-in will hold a formal meeting with Kim.
The officials toasted with the Korean liquor "soju" and were served buckwheat and potato pancakes, dried pollock soup, grilled halibut and other dishes.
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