The summit between President Donald Trump and North Korean leader Kim Jong-un, while historic, was noticeably scant on details involving denuclearization.

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Hours before the summit, Trump, seemingly taking offense to those who were unsupportive of the meeting, blasted his critics on Twitter. In his tweet, he referred to them as “haters and losers” and touted his accomplishments involving North Korea.

Trump repeatedly said in the past few weeks that he would simply walk out of the meeting if he sensed Kim was not serious about the denuclearization of the Korean Peninsula. While the summit culminated in the two leaders signing an agreement that stated the United States will provide “security guarantees” and Kim “reaffirmed his firm and unwavering commitment to complete denuclearization of the Korean Peninsula,” the “how” and “when” are noticeably missing.

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Trump said the declaration was “very important” and “pretty comprehensive,” but there are no particulars on timing or checks on North Korea to ensure the country is following through. It does not use the words “irreversible” or “verifiable” to describe the denuclearization process, which the U.S. has long pursued and appears to echo a statement between North and South Korea signed in April, according to the Wall Street Journal.

The following points were established, courtesy of CNN:

 

The United States and the DPRK commit to establish new US-DPRK relations in accordance with the desire of the peoples of the two countries for peace and prosperity.

The United States and DPRK will join their efforts to build a lasting and stable peace regime on the Korean Peninsula.

Reaffirming the April 27, 2018 Panmunjom Declaration, the DPRK commits to work toward complete denuclearization of the Korean Peninsula

The United States and the DPRK commit to recovering POW/MIA remains, including the immediate repatriation of those already identified.

Critics say the agreement is vague and does not have any firm commitment from North Korea to dismantle nuclear sites.

Following the Summit, Trump said their agreement would “take care of a very big and very dangerous problem for the world” and that North Korea’s process of denuclearization is expected to begin “right away.”