How We Went From "Little Rocket Man" To A Trump–Kim Summit In 23 Easy Steps

It's been a real roller coaster of emotions between the two leaders.

President Donald Trump arrived in Singapore on Sunday to sit down with Kim Jong Un in the first face-to-face meeting between a sitting US president and a North Korean leader.

As you may recall, Kim and Trump's relationship has had some ups and downs, to say the least.

With that in mind, let's go back to the start and see just how we went from a war of words and worries of nuclear war to the historic summit that's about to begin.

Nov. 10, 2016 — Then-President Barack Obama reportedly warns President-elect Trump during their post-election Oval Office meeting that North Korea will be the biggest national security challenge he faces as president.

Feb. 10, 2017 — Park Geun-hye, then-president of South Korea, whose hardline views on unification of the Koreas had enraged North Korea, is removed from office.

Feb. 12, 2017 — North Korea launches a missile test during Trump and Japanese Prime Minister Shinzo Abe's first meeting at Trump's Mar-a-Lago estate.

Feb. 14, 2017 — Kim Jong Nam, Kim's older brother, is assassinated in Malaysia.

April 14, 2017 — The US announces that its policy toward North Korea will consist of "maximum pressure and engagement" to get the country to agree to "denuclearization," the complete dismantling of its nuclear program.

June 19, 2017 — Otto Warmbier, an American college student, dies soon after his release from North Korea.

July 4, 2017 — North Korea tests its first successful ICBM, putting more of the world in its crosshairs than ever before.

Aug. 8, 2017 — Trump warns North Korea in off-the-cuff remarks that "any more threats" against the US will be met "with fire and fury like the world has never seen."

Trump: North Korea "best not make any more threats" to the US or they will be met "with fire and fury like the world has never seen." https://t.co/RTaEwFMxHq

Trump's threat comes just hours after the Washington Post cited a US military assessment that said North Korea had succeeded in miniaturizing its nuclear warheads to be able to fit on its missile arsenal. North Korea would respond the next day by threatening Guam, a US territory in the Pacific Ocean. A further threat that "all options are on the table" from Trump later that month would see a renewed threat against the island.

Sept. 3, 2017 — North Korea conducts its sixth nuclear test, prompting celebration in Pyongyang.

Sept. 15, 2017 — North Korea shoots a mid-range missile over Japan, setting off a national alert and worrying everyone.

Sept. 19, 2017 — Trump goes to the UN General Assembly and calls Kim "Rocket Man" on the world stage.

Sept. 23, 2017 — North Korea says that a Trump tweet warning "Little Rocket Man" that his country "won't be around much longer" is a declaration of war.

Just heard Foreign Minister of North Korea speak at U.N. If he echoes thoughts of Little Rocket Man, they won't be around much longer!

Days earlier, ahead of North Korean Foreign Minister Ri Yong Ho speaking at the UN, US bombers flew near North Korea's east coast. After Ri's UN speech lambasted the US, Trump sent his tweet. Ri in return said that since the US "declared war on our country, we will have every right to make countermeasures including the right to shoot down the United States’ strategic bombers even when they’re not yet inside the airspace border of our country."

Oct. 1, 2017 — Trump tells Tillerson on Twitter that he's "wasting [his] time" in negotiating with Kim and North Korea.

Jan. 3, 2018 — Kim in his New Year's address warns the US that the "nuclear button" is always on his desk. Trump responds by tweeting that his button is "bigger."

Jan. 9, 2018 — In the first signs of a shift, the Koreas announce that North Korea will attend the upcoming Winter Olympics hosted in South Korea.

March 8, 2018 — South Korea brings word that Kim would like to one day meet with Trump. Trump accepts on the spot, sending out the South Koreans to announce it.

Apr. 27, 2018 — Kim and Moon meet face-to-face along the Demilitarized Zone (DMZ), the first meeting between leaders of the two Koreas in years.

April 29, 2018 — John Bolton, Trump's new national security adviser, rattles North Korea by bringing up the "Libya model" during a television appearance.

May 10, 2018 — Trump welcomes three US detainees released from North Korea as they arrive back in the United States.

May 24, 2018 — North Korea demolishes its nuclear test site — or at least it says it did.

May 24, 2018 — The same day as the detonation, Trump abruptly announces that he's canceling the summit, but leaves the door open to calling it back on.

June 1, 2018 — Trump meets with North Korea former spymaster Kim Yong Chol at the White House and declares that the summit is back on.

June 11, 2018 — Trump arrives in Singapore a day early, fresh from a less-than-fruitful round of negotiations with allies.