Former CIA officer Daniel Hoffman said that the historic agreement between President Donald Trump and Kim Jong Un was not conducted like any other summit.

Hoffman, a Fox News contributor, said that what summits usually consist of are "a lot of pages and a lot of details."

The president and the North Korean leader signed a document on Tuesday stating that Pyongyang would work toward "complete denuclearization of the Korean Peninsula."

The agreement came after the two leaders held several meetings throughout the day.

WATCH: Donald Trump, Kim Jong Un Shake Hands, Exchange Greetings

Hoffman said that it was necessary for President Trump to establish a personal relationship with Kim in order to meet with him and ultimately work toward denuclearization.

"I think the first thing the president did [was] engage North Korea bilaterally and then he took a chance with a bold initiative again to meet Kim Jong Un," he said.

He added that any chance of true success depends on North Korea and how serious it is when it comes to giving up nuclear weapons.

"They've got a long history of double dealing," Hoffman said.

He also said that Secretary of State Mike Pompeo's CIA background comes into play when understanding how Kim could react to the summit with President Trump.

Watch the segment above.

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