President Trump continued to pat himself on the back Tuesday night for arraigning the Singapore summit — saying it helped reduce the risk of “potential Nuclear catastrophe.”

The commander-in-chief also made sure to thank North Korean leader Kim Jong Un for agreeing to meet with him, calling their day together “historic.”

“The World has taken a big step back from potential Nuclear catastrophe!” Trump tweeted. “No more rocket launches, nuclear testing or research! The hostages are back home with their families. Thank you to Chairman Kim, our day together was historic!”

The president fired off another tweet less than an hour later, blasting the naysayers who condemned his decision to meet with Kim.

“A year ago the pundits & talking heads, people that couldn’t do the job before, were begging for conciliation and peace — ‘please meet, don’t go to war,'” Trump tweeted. “Now that we meet and have a great relationship with Kim Jong Un, the same haters shout out, ‘you shouldn’t meet, do not meet!'”

Several topics were discussed Tuesday during Trump and Kim’s summit, including the “complete denuclearization of the Korean Peninsula.”

The leaders both signed a document vowing to follow through with the promise, though North Korea has broken similar pacts in the past.

“I want to thank Chairman Kim for taking the first bold step toward a bright new future for his people,” Trump tweeted hours after their sit-down. “Our unprecedented meeting — the first between an American President and a leader of North Korea — proves that real change is possible!”

Trump told Fox News he thinks the Hermit Kingdom will start dismantling its nuclear program “virtually immediately.”

“His country has to be de-nuked, and he understood that, he fully understood that,” Trump said. “He didn’t fight it.”