After shaking hands, meeting one-on-one and in a group, and breaking bread-or rather stuffed cucumbers-over a working lunch, USA president Donald Trump and North Korean leader Kim Jong Un signed a mysterious agreement that Trump said was "very comprehensive" and would lead to a relationship with North Korea that is "very different than it has been in the past".
Here's a look back at some of the many comments Trump has shared on Twitter about the North Korean leader. While the Air Force One carrying Donald Trump landed in Singapore on Sunday evening, Kim Jong-un reportedly travelled by a Chinese plane, deployed for his personal use, and was received by Singaporean foreign minister.
Mr Trump said he was feeling "really great" and Mr Kim said North Korea and the U.S. had overcome obstacles to be able to hold talks, saying it "was not easy to get here".
Weeks later, more insults followed.
President Donald Trump is predicting that he and North Korean leader Kim Jong Un will have "a terrific relationship" as they meet face to face for the first time. "I don't want to do war", Rodman had quoted the North Korean leader as saying. The US leader is expected to give a news conference at around a 2:30pm (06:30 GMT).
Trump's retort included mention of his own "nuclear button" - one that doesn't actually exist.
The President is well-prepared for tomorrow's engagement with Chairman Kim.
In a statement to the media, the MFA said the two leaders had a good discussion on a wide range of regional and global developments.
The Trump administration seeks a "complete, verifiable and irreversible" dismantlement of Pyongyang's vast nuclear weapons program, which has produced up to 60 nuclear warheads housed across the country, according to U.S. intelligence estimates, as well as a sophisticated program for their delivery worldwide.
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Trump is sounding optimistic about his ability to persuade North Korea to abandon its nuclear weapons program after a lengthy one-on-one meeting with leader Kim Jong Un.
Asked whether he would invite Kim to the White House, Trump said: "Absolutely, I will".
Trump, who is seeking to persuade Kim to abandon his nuclear weapons program, called it "my honor" as he became the first sitting USA president to sit down with a North Korean leader.
The historic summit between Kim and Trump is set to take place at the Capella Hotel on Sentosa this Tuesday.
Officials of the two sides held last-minute talks to lay the groundwork for the summit of the old foes, an event nearly unthinkable just months ago, when they were exchanging insults and threats that raised fears of war.
"The ultimate objective we seek from diplomacy with North Korea has not changed - the complete, verifiable and irreversible denuclearization (CVID) of the Korea Peninsula is the only outcome that the United States will accept", Pompeo declared.
In addition to the pictures of Kim on the tour on Tuesday, separate landscape shots of the Marina Bay Sands hotel, and a bird's-eye view of Singapore from the hotel's observation deck were also shown.
The North Korea leader said through a translator that the document "heralds a new start, leaving the past behind".