SEOUL, South Korea >> North and South Korea agreed Friday to allow reunions next month of families separated by the 1950-53 Korean War, the first such meetings in three years and the latest conciliatory gesture from the North after a spring that saw it threaten Seoul and Washington with missile strikes and nuclear war.

One-hundred people from each country will be allowed to meet family members Sept. 25-30 at North Korea’s Diamond Mountain resort, South Korea’s Unification Ministry, which is responsible for relations with the North, said in a statement. Forty people from each side will also be allowed to hold talks by video conference on Oct. 22 and 23, and the countries agreed to meet later to discuss possible November reunions.

There’s immense relief in South Korea that people who have languished for decades with little or no word about their loved ones will at last meet and that the North’s threats and warlike rhetoric have died down — but there’s also wariness and deep mistrust. Analysts say North Korea often follows provocations with charm offensives meant to win much-needed aid and diplomatic concessions.

The Korean War separated millions of families, and huge numbers of refugees moved both north and south. Most don’t even know whether their relatives are still alive because the two countries bar citizens from exchanging mail, phone calls and email.

South Koreans who want to meet relatives must apply for a permit, and applicants are then chosen by lottery. Most of the people applying for permits are over 70, and already nearly 56,000 of the roughly 129,000 applicants have died.

Past reunions brought together weeping family members desperate for details and news. They were separated again a few days later. No Korean has received a second chance to meet their relatives, according to South Korean Red Cross officials.

The two Koreas also agreed Friday to work toward a “fundamental resolution” of the issue of separated families, by making the reunions regular events, allowing families to exchange letters and allowing them to find out whether their loved ones are still alive, the Unification Ministry said.

As North Korea has toned down its animosity in recent weeks, the rival Koreas have also pushed closer to reopening a jointly run factory park in the North that Pyongyang pulled out of in April as part of its weekslong furious response to U.N. sanctions over its February nuclear test and to annual military drills by Seoul and Washington.

North Korea has proposed another set of talks focusing on lucrative, jointly run tours to Diamond Mountain.

Analysts in South Korea have said that North Korea’s concessions are an attempt to resume tours to the resort, which would bring the impoverished nation a crucial source of legitimate hard currency. The mountain tours were suspended after the 2008 shooting death of a South Korean tourist at the resort.

Also this week, the president of the International Committee of the Red Cross, Peter Maurer, is visiting the two Koreas to discuss the family reunions and other humanitarian issues. He was in Pyongyang for a four-day trip and is to travel to Seoul on Sunday after a visit to China.

The ICRC has had a permanent presence in North Korea for about 10 years. The Red Cross says Maurer is the group’s first president in 21 years to make a combined visit to both countries on the Korean Peninsula.

The peninsula remains technically at war because the Korean War ended with an armistice, not a formal peace treaty.