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(CNN) —

Diplomacy and sporting endeavor mixed awkwardly at the spectacular opening of the 2018 Winter Olympics in South Korea, as sworn adversaries sat feet apart while North Korea received a welcome that would have been unthinkable just months ago.

In a ceremony infused with themes of peace and harmony, South Korean President Moon Jae-in twice shook hands with Kim Yo Jong, the sister of North Korean leader Kim Jong Un. US Vice President Mike Pence, sitting a few seats away in the same VIP booth, looked stony faced as the extraordinary scenes unfolded.

The unprecedented encounter between the two senior Koreans fueled hopes that the Olympics could succeed where a generation of world leaders has failed – to lay the groundwork, however tentatively, to a process of reconciliation on a peninsula that often appears one wrong move away from nuclear conflict.

Minutes into the ceremony, as children skipped through a mythical landscape, Moon greeted Kim Yo Jong and North Korea’s 90-year-old ceremonial head of state Kim Yong Nam, the head of the North’s Olympic delegation.

PHOTO: Matthias Hangst/Getty Images

Kim Yo-Jong applauds during the Opening Ceremony of the PyeongChang 2018 Winter Olympic Games.

Kim Yo Jong, the first member of the North’s ruling dynasty to visit the south since the end of the Korean War in 1953, smiled broadly as they shook hands.

Then, the two figures from opposite sides of a divided Korea watched as athletes from their respective nations marched together under a unified flag.

Themes of peace

A giant dove lit up the sky, famous South Korean singers sang John Lennon’s Imagine and, most significantly of all, athletes from North and South Korea walked in together for the first time in 11 years.

The message was not subtle. Drawing on themes of harmony and unity, the ceremony gave Koreans hope – whether or not it lasts – that their nations, still technically at war, may one day find peace.

PHOTO: Sean M. Haffey/Getty Images

The South Korean flag "Taegeukgi" is seen during the Opening Ceremony of the PyeongChang.

The ceremony involved a starring role for the Games’ mascot Soohorang, the white tiger, long been considered a protective guardian in Korean history and culture.

In an elaborate finale, pre-taped for the TV broadcast to ensure nothing went wrong, more than 1,200 choreographed drones formed the Olympic rings in the sky.

PHOTO: Jamie Squire/Getty Images

Soohrang, the white tiger, played a starring role in the opening ceremony.

Pence looked uncomfortable

Pence, who has been vocal in his criticism of North Korea in the runup to the Games, sat impassive in the frigid February night, rising only when the US team entered the stadium.

The US and North Korean representatives did not speak during the ceremony, and Pence did not attend an earlier dinner where he was due to share a table with North Korea’s ceremonial head of state.

Moon, however, welcomed Kim enthusiastically, greeting her warmly when she entered the VIP box and then shaking her hand again when North and South Korean athletes entered the stadium together.

PHOTO: ODD ANDERSEN/AFP/Getty Images

US Vice President Mike Pence (front R), his wife Karen (front C), North Korea's leader Kim Jong Un's sister Kim Yo Jong (2nd L) and Kim Jung-Sook (L), the wife of South Korea's President Moon Jae-in, attend the opening ceremony.

The presence of Kim, who was promoted to the country’s Politburo, the senior body of North Korea’s communist party, as an alternate member last year, represents a hugely significant move in the thawing of relations between the neighbors.

According to diplomatic sources, there is a “good chance” Kim will invite Moon to visit Pyongyang “sometime this year.”

PHOTO: Jamie Squire/Getty Images

Fireworks explode during the Opening Ceremony of the PyeongChang 2018.

While the sources say “nothing is final,” a visit by Moon to North Korea would be the first time a South Korean President has stepped foot in the country since 2007.

That invitation could come when Moon and Kim will meet for lunch at the Blue House on Saturday, after the meeting was confirmed by a South Korean presidential spokesperson.