FILE - In this Feb. 10, 2018, file photo, South Korean President Moon Jae-in, right, poses with Kim Yo Jong, North Korean leader Kim Jong Un's sister, for a photo at the presidential house in Seoul, South Korea. Moon invited Kim, the first member of North Korea’s ruling family, and other senior North Korean officials for lunch at Seoul’s presidential palace, where Kim delivered her brother’s intentions to hold a summit with Moon in Pyongyang “soon.” (Kim Ju-sung/Yonhap via AP, File)

SEOUL, Korea, Republic Of - South Korean officials say North Korean leader Kim Jong Un has agreed to meet with South Korean President Moon Jae-in next month, reviving hopes for a diplomatic approach to dealing with the North's nuclear threat.

The war-separated rivals have been taking steps to repair strained ties following the North's outreach to the South during the recent Pyeongchang Winter Olympics, where North Korean officials expressed Kim's desire for a summit with Moon.

North Korea also said it's willing to open talks with the United States on denuclearization and normalizing relations. It promised to halt nuclear and missile tests as long as such talks continue, according a South Korean envoy who returned Tuesday after meeting Kim in North Korea.

Reviving a meaningful dialogue with the North is critical for the policies of Moon, who insists Seoul should be in the "driver's seat" in international efforts to deal with North Korea.

Leaders of the two Koreas have met only twice during their 70 years of division.

A look at some of the significant meetings held between the Koreas since the 1950-53 Korean War:

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OPENING TALKS IN 1972

Nineteen years after their war ended in an armistice, the Koreas agreed to open political dialogue in 1972. The countries issued a joint communique in which they agreed to establish a co-ordinating committee for future talks and install a direct phone line between them.

The Koreas also agreed that unification should be achieved peacefully and that the two sides should cease mutual slander and armed provocations and undertake measures to prevent military conflict.

After several meetings in Seoul and Pyongyang, North Korea abandoned the talks, demanding that South Korea first repeal its anti-communist laws.

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PLANNING FAMILY REUNIONS IN 1985

In August 1985, the Koreas reached an agreement to organize the first temporary reunions between war-separated families.

The first meetings took place in Seoul and Pyongyang in September, but the countries weren't able to arrange another round until 2000 because of continuing animosity.

During the first reunions, North Korean state media accused South Korean visitors of indulging in anti-communist propaganda during their meetings with North Korean relatives.

The Koreas have so far held 20 rounds of family reunions.

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SUMMIT OF 2000

The first inter-Korean summit took place between former North Korean leader Kim Jong Il, the late father of current leader Kim Jong Un, and former liberal South Korean President Kim Dae-jung.

The three-day meeting in June, which began with a broadly smiling Kim Jong Il tightly grabbing the hands of Kim Dae-jung at the Pyongyang airport, led to an agreement between the Koreas on now-stalled joint economic projects. The countries also agreed to resume family reunions.

Kim Dae-jung won the Nobel Peace Prize later in 2000 for his rapprochement policies with the North.

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SUMMIT OF 2007

The Koreas held their second summit in October 2007 between Kim Jong Il and Roh Moo-hyun, Kim Dae-jung's liberal successor and the political mentor of current South Korean President Moon Jae-in.

Roh went to Pyongyang after crossing the Demilitarized Zone in a symbolic moment that grabbed international headlines.

Kim and Roh agreed to pursue a peace treaty to formally end the Korean War and reached a set of co-operation projects. But most of the accords were shelved after Roh's single five-year term ended months later and he was replaced by a conservative who took a harder line over the North's nuclear ambitions.

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PULLING BACK FROM THE BRINK IN 2015

Using high-level marathon talks over three days, the Koreas in August 2015 reached an accord and dramatically pulled back from a tense standoff that involved an exchange of artillery fire and vows of imminent war.

Under the accord, North Korea issued a vague expression of regret over land mine blasts at the inter-Korean border that maimed two South Korean soldiers.

North Korea previously denied the South's accusation that the mines were planted by North Korean soldiers. South Korea agreed to stop its anti-Pyongyang propaganda broadcasts at the border.

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OLYMPIC OUTREACH IN 2018

Becoming the first member of North Korea's ruling family to visit South Korea since the end of the Korean War, Kim Yo Jong, the sister of leader Kim Jong Un, flew to the South on Feb. 9 on her brother's private jet and took her place among world leaders at the Olympic opening ceremony in Pyeongchang, sitting just a few feet away from U.S. Vice-President Mike Pence.

Moon invited her and other senior North Korean officials for lunch at Seoul's presidential palace, where Kim delivered her brother's desire to hold a summit with Moon "soon."

North Korea sent another senior official, Kim Yong Chol, to the Olympics closing ceremony. He told Moon that the North had "ample intentions" to open dialogue with the United States.

News from © The Associated Press, 2018