Kim Jong-un and South Korean President Moon Jae-in.

The two will discuss the North's nuclear program, begin talks on officially ending the Korean

war after 65 years, and lay the groundwork for a meeting between Kim and President Trump

later this spring.

As special correspondent Katrina Yu reports, while the world looks on, no one is more anxious

about the results of tomorrow's summit than the Koreans themselves.

(BEGIN VIDEOTAPE)

KATRINA YU, PBS NEWSHOUR SPECIAL CORRESPONDENT: From her room in the suburbs of Seoul, North

Korean native Kim Ryen Hui has been counting down the days to the summit.

She has been living in the South for seven years.

She sees tomorrow's meeting as bringing her one step closer to being reunited with her

family in Pyongyang.

KIM RYEN HUI, NORTH KOREAN NATIVE (through translator): Now we can finally overcome the

pain of the division.

As a child of the North Korean nation, I'm so happy I can now tell my child the time

for reunification is coming.

YU: Kim is one of many North Koreans separated from loved ones across the border, but unlike

most defectors, she's not happy to be here.

The 49-year-old says she was tricked into thinking she could work temporarily in South

Korea, and hasn't been allowed to return to her daughter.

KIM: I'm a mother of a child.

People tell me the South is a decent place to live, you won't starve here, you can live

well.

And ask why would I go through the hardship of returning to the North?

But even if I can't eat or live well, if I could be with my family, just hold my daughter

again, there's nothing else I would want.

YU: It's not known whether the issue of family separation will be on the table when the two

leaders meet, but for the first summit in more than 10 years, an agenda is clear.

PRESIDENT MOON JAE-IN, SOUTH KOREA (through translator): We must create a clear path that

leads to the denuclearization of the Korean peninsula, the establishment of permanent

peace, and the development of sustainable South and North Korean relations.

YU: The meeting will be held at peace house in Panmunjom, a border village inside the

demilitarized zone where the Korean War armistice was signed in 1953.

A few miles away, South Koreans have been flocking to their side of the DMZ, excitement

replacing the tension of late last year.

The heavily fortified stretch of land was, until recently, blasting loudspeakers into

the North.

Earlier this week, South Korea suspended their propaganda broadcasts from the DMZ as a gesture

of goodwill in the lead-up to the summit.

Normally comprised of South Korean pop, radio dramas and news, they were designed to show

North Koreans how much the world had moved on, and how better life in South Korea is.

The changes followed the most significant gesture from the North to date, an announcement

last week that the regime would suspend nuclear tests and focus on the economy.

FEMALE TV ANNOUNCER (through translator): As long as there is no nuclear threat and

provocation against our nation, we will never use nuclear weapons and under no circumstances

will we transfer our nuclear weapons and nuclear technology.

YU: But many, including activist Lee Min Bok, believe North Korea cannot be trusted.

LEE MIN BOK, ACTIVIST (through translator): It's not because of South Korea's efforts,

or because of Kim Jong- un's goodwill.

This summit has arisen because of the great external pressure put on North Korea.

As soon as this pressure is gone, they will cheat us again.

YU: The defector made two attempts to escape the North before arriving in South Korea in 1995.

He's now devoted his life to floating balloons carrying leaflets across the border, weapons

in a war for the hearts and minds of the North Korean people, he says.

Critics say his work is useless, but he points to attempts on his life by the regime as proof

of impact.

Leaflets are, after all, the reason he's here.

LEE: This is the best method, this is what I've realized.

Before, I was perfectly devoted North Korea citizen.

Didn't drink, didn't smoke, or chase girls.

I only did what the leader and the party said I needed to do for my country.

But after finding one leaflet, I learned of the fraudulent government and I went from

one extreme to the other.

YU: In Seoul, many others are also wary of the regime's promises.

UNIDENTIFIED MALE (through translator): The point of the summit this week is denuclearization.

But North Korea won't give up its weapons so easily.

UNIDENTIFIED FEMALE (through translator): Denuclearization isn't simple or straightforward,

and it won't be fast.

YU: Although Professor Park Inhwi says North Korea has lied over and over again, he has

reason for hope, thanks in part to what he calls the Trump effect.

PARK INHWI, PROFESSOR (through translator): Trump's administration is very, you know,

military-oriented and strong regarding the Korean issue.

YU: For many, the inter-Korean meeting is simply a preview of what's to come.

For most South Koreans, the real test as to whether the situation with the North will

change will be seen after the planned meeting between President Trump and Kim Jong-un.

Seoul says Washington will be kept closely informed of Friday's developments, with a

phone call from South Korea to the White House planned right after the meeting.

The topic, no doubt: how to turn any short-term wins into long-term results.

For the PBS NEWSHOUR, I'm Katrina Yu in Seoul.