Kim spent the day mostly out of view - until he left his hotel for a late-night tour of Singapore sights, including the Flower Dome at Gardens by the Bay, billed as the world's biggest glass greenhouse. Days earlier, in the North Korean village of Panmunjom, negotiations between diplomats from Washington and Pyongyang stalled when North Korea's vice-foreign minister Choe Son-hui said that denuclearization "should not be on the table for the Singapore summit" - a demand that would nullify the meeting's goal from the White House's perspective.
Nobody is pretending North Korea can ape Singapore but the message to Kim of the hermit kingdom is clear - come in from the cold on the steaming hot humid south Asian island of Singapore.
Despite the initial high stakes of a summit meant to rid North Korea of its nuclear weapons, the talks have been portrayed by Trump in recent days more as a get-to-know-each-other meeting.
The first-ever meeting between a USA president and a North Korean leader was to kick off at 9 a.m. Tuesday with a handshake, an image sure to be devoured from Washington to Pyongyang and beyond.
At a press conference earlier on Sunday, Loong said that the summit cost approximately $20 million, which is a price the Singapore was "willing to pay".
Trump and Kim landed in a city teeming with media and onlookers of all stripes, from foreign policy analysts like Kelly and Enos to former basketball star Dennis Rodman, who claims to be a friend of the two leaders.
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Leaders have struggled to find ways of getting through to Trump and persuading him to budge from his pre-established positions. Mr Trump will skip G7 meetings about climate change, clean energy and ocean protection.
The two leaders are set to meet on Tuesday at the Capella Hotel on Sentosa for talks which could see North Korea dismantle its nuclear arsenal in return for economic help and security guarantees. Two other aircrafts, one carrying several "essential" items for Kim such as a bullet-proof limousine and portable toilet, also departed within the same hour as the one carrying Kim.
The guards must be about the same height as Kim, BBC said.
Trump is expected to be joined by Trump was to be joined by Pompeo, chief of staff John Kelly, national security adviser John Bolton and U.S. Ambassador to the Philippines Sung Kim, along with a few others, the AP reports.
Olivia Enos of the USA -based Heritage Foundation is urging Trump to not ignore rights concerns. "We were able to complete the preparations for the historic summit, and I would like to thank you for that", Kim, speaking through an interpreter, told Lee.
While fighting a trade war with allies, Trump now brings his America First negotiating style to the deadly topic of North Korea's nuclear weapons.
The meeting was kicking off at 9 a.m. local time Tuesday with a handshake between Trump and Kim. Trump had previously said the talks might extend beyond the first day. He told reporters, "I will know, just my touch, my feel".