Donald Trump on Sunday stepped into North Korean territory, the first time a sitting US president has ever set foot in the former enemy country.
In a historic moment, Trump walked across the concrete blocks dividing North and South Korean territory in the Demilitarised Zone that divides the peninsula, where the two sides fought each other to a standstill in the 1950-5 Korean War. 
President Donald Trump meets with North Korean leader Kim Jong Un, with South Korean President Moon Jae-in.
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"I just want to say that this is my honour," President Trump said alongside Kim Jong Un. "I didn't really expect it, we were in Japan for the G20. I came over and I said I want to meet Chairman Kim.
"We got to meet and stepping across that line was a great honour. A lot of progress has been made, a lot of friendships and this is a great friendship in particular."
He added it was "a great day for the world".
The North Korean leader Kim Jong Un responded that his "wonderful" relationship with US President Donald Trump would enable the two longtime enemies to get over obstructions, with their nuclear talks at a stalemate.
"I am convinced our relationship will enable us to overcome barriers standing in the way," said Kim, adding as the two leaders held talks in the Demilitarized Zone that their close ties enabled a meeting to happen "just overnight".
The unexpected encounter, only suggested a day earlier by Trump on Twitter, comes with negotiations over the North's nuclear program in stalemate since the leaders' last summit in Vietnam in February.
The two leaders side by side before crossing the North Korean border.
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Accompanied by South Korean President Moon Jae-in, an earnest-looking Trump earlier toured an observation post overlooking North Korean territory, with a US military officer pointing out the sights.
President Donald Trump shakes hands with North Korean leader Kim Jong Un after their meeting.
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Earlier South Korea President Moon Jae-in had confirmed a meeting would take place.
"The leaders of the US and North Korea will have a handshake for peace standing at Panmunjom, the symbol of division," Moon said, referring to the "truce village" in the DMZ.
