Transcript for North Korea meeting set after prisoners' return

But with start with Terry Moran in London. Terry the president. Just announcing that he's gonna sit down with Kim Jong moon in Singapore on June 12 talked about the significance. Sing. Well. In Singapore is significant because it's it's neutral territory this was a very delicate the negotiation as you can imagine but. Asked the speed with which this historic summit. Has come together. I really is breathtaking and a Singapore was chosen the teams for a couple of reasons first of both sides seem to want it on neutral ground. They demilitarized. Zone which apparently attracted president Trump's interest when the two Korean leaders meet Kim Jong-un met Kim Jung on and and as moon Jae in when they met that. Theater of that the great drama and fantastic pictures was very well produced I think intrigue president trumpet the end of the day. A neutral venue that have to be within range of Kim Jong runs very old airplane he he doesn't have the very up to date. Transportation and so we only had a range of a couple thousand miles Singapore was it that's the significance of that but the real significant no sitting president. Has ever met a North Korean leader these ads you we all know. That North Korean the United States have bent at. Bader fierce opposition for decades. A North Korea threatened to rain fire nuclear fire down on the United States and president trump responding in kind. Saying he had the last year that. They would meet fire and fury like they had never see like the world has never seen before if North Korea went ahead with any kind of provocation like that here they are. Now. And it seems quite happy to sit down and tried to cut some kind of deals some kind of grand deal that. That is just a breathtaking sequence of events that it will now culminate in Singapore Jim in the twelfth. Hard to blame with some of the rhetoric that you just mentioned that we've heard over the past year this has been in action packed week on Tuesday. The president pulled the United States out at the Iran nuclear deal wins today he helped get these three Americans back. From North Korea really setting the table for this meeting what are we to make the international implications of both stories Terry. Well on the North Korea story that this is this shows president trump at his best so far let's face of that did this this is a man who likes to surprise people elect to seize center stage. You governs with a degree of chaos that he feels comfortable managing keeping everybody guessing till heat. Makes the decisive moment chooses the moment makes that makes the decision and steps forward this is what Donald Trump likes to do. And so far so good it's working his fire and fury rhetoric combined. With let's face hit the successes of the North Korean ballistic missile and and nuclear programs. Have combined to put both men and a pretty strong position. At a moment where they can both step forward and maybe cut a deal one other thing that I think is significant here. Is is generational look there's forty some years between these two men president trump. All old enough to remember the Korean War Kim Jong on 34 years old obviously not. And I think Kim Jong-un feels that this is this is an ancient fight in some ways it almost seems like he can't. Wait to get into the 21 century went to school outside of North Korea he knows how what's going on I've been in Pyongyang and have been struck. By how younger North Korean elite so I mean the elite of the elite. Do you have access to 20% you're conveniences to nice restaurants to he's built gyms and amusement parks for his ruling elite. I it does feel as if he knows how good the 21 century is his country which is locked in a in. Primitive prop poverty I think he wants to improve. The lives of its people so that right now because of president trump style is his approach on this. And because it proud could Kim Jong ruins of vision as well for his country things look. Promising who voted funk. Terry there's been a dramatic acts out escalation between Israel and Iran in the past 44 hours comes on the heels up president trampling the US out of the Iran deal do you think there's a direct link there. It does look like this is a reaction by Iran. At president trump for. Basically tanking the Iran deal it's it's hard to see how Iran and the European keep it together. And going after Israel for a couple of reasons obviously Israel and Iran are mortal enemies they are sworn enemies. They are really add the polar opposite ends of the Middle East there. But also prime minister Benjamin Netanyahu. And his Israeli government were that great cheerleaders. Behind president trump. Going after this deal and in fact dead Brad Benjamin Netanyahu did his best to stop this deal from being made the first question remember he addressed congress. Accepting an invitation from then speaker of the house John Boehner. Not even telling the White House about it and incredible slap protocol. Use of protocol to slap the president yes there's a time Barack Obama. So Iran choosing this moment and this opponent to make a point about the deal but then beyond that really. What's really dangerous is they struck from Syria. Syria is now a cauldron not just of human misery and violence. But of great power politics rushes in there the United States is in Iran is in there is realism Turkey is in there. There's gulf money pouring in there. It is a mess and it is a tinderbox. Already aflame. And this is something that could set the whole region on fire I think today to be. The two to be accurate both sides seem to have popped each other and step back. Israel cleared the farms in the fields from that border area wal this fight was going on last night that let the farmers returned to their fields. An indication that they feel that would give and take is done. But will see is a very dangerous situation indeed. A lot to want to wrap over the past 48 hours Terri thanks so much presidents from mentioning that he will potentially. Re negotiate with the Ron it don't come to the table under. What he's looking forward to go now to Cecilia today gas at the White House Cecilia get more information on the three Americans were released from North Korea they touched down. On US soil overnight what can you Telus. Well. What I what I why are weighted if you don't mind is that breaking news out of the White House president just revealing on Twitter. The date and a time of that highly anticipated meeting a summit between him. And Kim Jung and it would make aft president trump the first sitting American president to ever in the history. North Korea to meet with a leader from that country he's got that we just came out with I believe you talked about it the top of the show but let's just revisited quickly highly anticipated meeting. Which in Kim Jung un and myself will take place in Singapore on June 12. We will both try to make it a very special moment for world peace as yet been talking about in recent days of course the president has said that he wanted this summit to take place. On the DMZ that border highly militarized border between north and South Korea. Something changed it will now is he says be happening in Singapore. And and and really what we saw overnight was a lead up to this you showed that video there. A historic moment who is president see it and for the country and president trump was right there. Who mourning a dramatic arrival authorities three detainees former detainees. To land back home on American soil on. And it an American government. An airplane to have the president of the United States. Very and that happened greet them and say. Welcome home. And here is really remarkable to see one of those men walking behind president trump you're jumping up and down he had his arms up in the air is holding its fingers off. And at peace or victory sign the optics of that. Really important you know president trump always be great PR the entertainer. It was really compelling. Did we know more about the conditions that these three men were held in North Korea. Will we know that they traveled on airplanes that had a medical. New capabilities. And and and so much of what we know about air they're current medical state. Is from our own eye is really what we're seeing unfold on the screens before us away you can see right there they are able to. Get on those airplanes and get off those airplanes walk down those fears there without the assistance of any one they seem to be in good health vice president penciled. Our John Carl today that of course we'll have to wait and see how they really are and we tell from cast detainees who've been freed an act country of course that. That there is a transition period it's it's obviously mean what what at least one of them was in. Hard prison labor camp and talked about the labor that he had to do air so certainly a physical transition to come but. I don't know that any of us any of us could imagine. The emotional. Transition and that and that the mental transition that comes with having to come out of something like that having endured with even torture now. Freedom back home on air soil. And the vice president telling ABC news that one of the Americans to win the plane was refueling in Alaska said that he wanted to step outside see the light has yet seeing light and quite some time Cecilia Vega at the White House thank you so much good but great work.

This transcript has been automatically generated and may not be 100% accurate.