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North Korea's Kim Jong-un and South Korean leader meet at border
Image source, Getty Images
The leaders of North and South Korea have met for the first time in 10 years.
North Korea's Kim Jong-un and South Korea's Moon Jae-in shook hands at the border, and then held hands as they crossed the military line between the two countries.
This is the first time a North Korean leader has set foot in the country of South Korea in 65 years.
That was when the Korean war ended as the countries agreed an armistice - which is when warring countries agree to stop fighting.
It was that war which split Korea into two; North and South.
The two leaders have now said they will formally agree a peace treaty by the end of the year.
Image source, Getty Images
Find out more about North Korea in our guide: What do we know about North Korea?
Image source, EPA
The two neighbours have not held serious talks since December 2015.
This meeting is part of a summit, and comes after a recent relaxing of tensions between the countries.
Over the last few months North Korea has been making efforts to start friendlier talks with its neighbour.
Image source, Getty Images
In January 2018 a secure phone line was reopened allowing the two government's to talk to one another.
This phone line had been disabled almost two years beforehand on Kim Jong-un's orders.
Mr Kim said he was open to communicating with South Korea, and sent a team to the 2018 Winter Olympics in the South Korean city of Pyeongchang.
Image source, Getty Images
North and South Korea also put on a show of unity during the Olympic opening ceremony, with their athletes entering the stadium under the same flag.
The flag showed the outline of both countries joined together.
A week before his meeting with the South Korean leader, Kim Jong-un announced his country will no longer carry out tests of its nuclear weapons or missiles.
Mr Kim has also promised that a nuclear testing site in the north of his country will be shut down.
Some people think this is a sign the North Korean leader is also interested in making peace with America.
Some people have said that a potential meeting between Kim Jong-un and President Trump could take place in late May or early June.