PM Justin Trudeau of Canada acted so meek and mild during our @G7 meetings only to give a news conference after I left saying that, “US Tariffs were kind of insulting” and he “will not be pushed around.” Very dishonest & weak. Our Tariffs are in response to his of 270% on dairy!

— Donald J. Trump (@realDonaldTrump) June 9, 2018

On Twitter, Trump said Trudeau was \"meek and mild\" at the G-7 summit, but was \"very dishonest and weak\" during his post-summit news conference.

\"Based on Justin’s false statements at his news conference, and the fact that Canada is charging massive Tariffs to our U.S. farmers, workers and companies, I have instructed our U.S. Reps not to endorse the Communique as we look at Tariffs on automobiles flooding the U.S. Market!\" Trump said in a tweet.

The historic and important agreement we all reached at #G7Charlevoix will help make our economies stronger & people more prosperous, protect our democracies, safeguard our environment and protect women & girls’ rights around the world. That’s what matters. https://t.co/a6D109gTlB

— Justin Trudeau (@JustinTrudeau) June 10, 2018

Prime Minister Justin Trudeau holds a media availability at #G7Charlevoix. https://t.co/8IFyOgXTuJ

— CanadianPM (@CanadianPM) June 9, 2018

French President Emmanuel Macron issued a statement reaffirming France's endorsement of the G-7 communique.

\"Let's be serious and worthy of our people. We make commitments and keep to them,\" Macron said. \"International co-operation cannot be dictated by fits of anger and throwaway remarks.\"

'One time shot'

Trump seemed more upbeat about his upcoming meeting with Jong Un, a ruthless dictator he has previously called \"short and fat\" and a \"tyrant.\"

\"I am on my way to Singapore where we have a chance to achieve a truly wonderful result for North Korea and the World. It will certainly be an exciting day and I know that Kim Jong-un will work very hard to do something that has rarely been done before...\" Trump said in a tweet. \"...Create peace and great prosperity for his land. I look forward to meeting him and have a feeling that this one-time opportunity will not be wasted!\"

…Create peace and great prosperity for his land. I look forward to meeting him and have a feeling that this one-time opportunity will not be wasted!

— Donald J. Trump (@realDonaldTrump) June 9, 2018
\"PHOTO:
MCI/HANDOUT/EPA-EFE via REX/Shutterstock
PHOTO: North Korean leader Kim Jong-un (L) and Singapore Prime Minister Lee Hsien Loong (R) shake hands during their meeting at the Istana Presidential Palace in Singapore, June 10, 2018.
>

Earlier, Trump told reporters he will be undertaking a \"mission of peace\" as he heads into \"unknown territory in the truest sense.\"

He described the highly-anticipated meeting as a \"one-time shot\" for Kim, but told reporters he thinks \"it's going to work out very well.\"

\"I think I'll know pretty quickly whether or not, in my opinion, something positive will happen,\" Trump said. \"And if I think it won't happen, I'm not going to waste my time. I don't want to waste his time.\"

\"Kim
Ministry of Communications and Information, Republic of Singapore
Kim Jong Un, right, arrives in Singapore for North Korea's summit with U.S. President Donald Trump on Sunday, June 10, 2018.
>

North Korea's nuclear ambitions date back decades

North Korea evolved into the nuclear-armed enigma it is today long before Trump took the White House. In fact, North Korea's nuclear weapons program and its development of long-range rocket systems have been three generations in the making. And the country's standing as a nuclear-weapon-possessing state has even been etched into its constitution.

\"PHOTO:
Wong Maye-E/AP, FILE
PHOTO: North Korean leader Kim Jong Un waves while officials, from left, Choe Ryong Hae, Kim Yong Nam, Pak Pong Ju, and Hwang Pyong So applaud during a military parade in Pyongyang, April 15, 2017.
>

Kim Il Sung, the country's founder, who ruled from its establishment in 1948 until his death in 1994, dreamed of an intercontinental ballistic missile as the United States threatened to use nuclear weapons against the North during the Korean War.

The Soviet Union, Pyongyang's ally and sponsor, began training North Korean scientists and engineers in the 1950s, giving them the \"basic knowledge\" to initiate a nuclear program, according to the American Security Project, a nonprofit nonpartisan public policy and research organization based in Washington, D.C.

\"Korean
KCNA/AFP/Getty Images, FILE
Korean People's ballistic missiles are being displayed through Kim Il-Sung square during a military parade in Pyongyang marking the 105th anniversary of the birth of late North Korean leader Kim Il-Sung, April 15, 2017.
>

After the collapse of the Soviet Union and the death of Kim Il Sung, Kim Jong Il succeeded his father amid a dire famine that killed up to 2.5 million North Koreans. To protect the state, the new leader developed the songun, or military first, doctrine, under which the military's access to resources is prioritized.

\"In this sense, the military is not just an institution designed to perform the function of defending the country from external hostility,” South Korean scholar Han S. Park wrote in a 2007 paper. “Instead, it provides all of the other institutions of the government with legitimacy.”

In July 2006, North Korea tested the Taepodong-2, its first missile that could, in theory, reach parts of the United States. The test failed. Three months later, North Korea tested its first nuclear device near the village of Punggye-ri.

\"PHOTO:
KCNA via AFP/Getty Images
PHOTO: This picture taken on July 4, 2017 and released by North Korea's official Korean Central News Agency (KCNA) on July 5, 2017 shows the successful test-fire of the intercontinental ballistic missile Hwasong-14 at an undisclosed location.
>

Kim Jong Il died at the end of 2011 and his second son, Kim Jong Un, took power of the reclusive state.

In April 2013, Kim announced a policy of co-developing North Korea's economy and nuclear weapons program to reinforce his regime's domestic, diplomatic, economic and security interests, according to a 2015 report by the U.S. Department of Defense.

Since then, his regime has continued to develop intermediate and long-range ballistic missiles, while staging a series of nuclear tests. Kim is believed to have defied international rules six times to test nuclear weapons, most recently in September 2017.

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