But a series of diplomatic overtures involving North Korea, South Korea and the United States reduced tensions and led Trump in March to quickly accept Kim's invitation to meet.
Past nuclear deals have crumbled over North Korea's reluctance to open its doors to outsiders.
The two are due to meet on Tuesday on the resort island of Sentosa for their high-stakes summit, the first-ever talks between the USA and North Korean leader and the culmination of a head-spinning diplomatic dance. Just meeting with Trump will also give Kim recognition as the leader of a "normal" country and as an equal of the U.S. leader.
"To the real leaders of this summit, let us set an example for you".
Trump has expressed keenness about his summit with Kim and called it a "one-time opportunity".
The leaders will meet on Tuesday on the resort island of Sentosa and talks are expected to centre on ending the North's nuclear weapons and missile programmes in return for diplomatic and economic incentives.
A year ago the North carried out what was by far its most powerful nuclear test to date and launched a flurry of missiles - including two over Japan - while Trump threatened Pyongyang with "fire and fury" and Kim dubbed him a "mentally deranged US dotard".
"If a breakthrough is achieved, if peace comes, there will be a bountiful harvest, primarily of course within the Korean Peninsula but indeed for all the rest of us", he said.
Most observers predicted that the outcome would be a short and vague statement build around the ambiguous aim of the "denuclearisation of the Korean peninsula" leaving it to later bilateral meetings to negotiate what that would mean in practice.
US President Donald Trump trusts his deal-making intuition to prepare for talks with North Korea's Kim Jong Un.
Now North Korean officials will nearly certainly emphasise preventing any sudden mishaps in Kim Jong Un's first visit to a foreign country other than China or South Korea since taking power, said Kim Doo-hyun, professor of protection politics at Korea National Sport University.
Just meeting with Trump will also give Kim a recognition North Korea has long sought, setting him up as global player and the leader of a country worthy of respect.
He has also dangled the prospect of Kim Jong Un visiting Washington if the meeting goes well.
Trump hopes the landmark talks will kick-start a process that eventually see Kim give up his nuclear weapons in an irreversible manner that can be verified internationally.
Enemies since the 1950-53 Korean War, the leaders of North Korea and the United States have never met previously - or even spoken on the phone.
The U.S. also wishes to win agreement on tangible denuclearization commitments from the North.
"They will use [nuclear weapons] first against us, and then with the long-range missiles that they're building and that the deal doesn't prevent them from building, against everyone else", Netanyahu said.
A US Special Forces Operational Detachment Alpha (ODA) came under attack today in the Bar-Sanguni area near Kismayo in Somalia. Three of the four wounded US service members were evacuated to receive additional medical treatment, the military said.
He also felicitated his Chinese counterpart on successful conduct of the SCO Summit in China and wished it a resounding success. Apart from this, the two sides formally agreed to undertake a joint project in Afghanistan , pertaining to "capacity building".
Trump also criticized his predecessor Barack Obama, saying he allowed Russian Federation to annex Crimea in 2014. The US president has frosty relations with Canadian Prime Minister Justin Trudeau , the summit host.
Canada has also rejected "for now" a proposal floated by the White House for new separate U.S. trade deals with Canada and Mexico. Just three days after returning to Washington from Sicily, he would pull the USA out of the Paris climate agreement.
North Koreans did not take it kindly when US Vice President Mike Pence talked of "Libya model" approach towards North Korea . The upcoming meeting will be held at the Capella Hotel on Sentosa island in Singapore, the White House confirmed.
More than 73 million toilets have been built across the country, according to the Ministry of Drinking Water and Sanitation. Anyone can help change mindset as a way to keep supporting our country make progress toward clean environment", he said.
Manafort's lawyers would find the hard work of trial preparation even more challenging with their client in jail, Zeidenberg said. Kilimnik worked with Manafort in Ukraine during that time, and during the 2016 election they were reportedly in regular contact.
Sadly, most scientists dismissed this claim in the decade that followed - finding other explanations for the rock's formation. This is the first time we've seen something repeatable in the methane story, so it offers us a handle in understanding it.
Interested in Amazon? Add Amazon as an interest to stay up to date on the latest Amazon news, video, and analysis from ABC News. The other 180 televised matches will be broadcast by Sky Sports and BT Sport , which have aired the Premier League in the past.
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