A decision will be made on whether America stays or leave the Iran nuclear deal.
President Trump who harshly criticized the accord... and the process could have an effect on the hotly anticipated summit between Washington and Pyongyang.
Cha Sang-mi explains further.
The Trump administration will announce its decision on whether to withdraw from Iran nuclear deal on Tuesday.
The deal, known as the Joint Comprehensive Plan of Action, was signed in 2015 by the Obama administration, and seven other signatories including China, Russia, several European countries, and of course, Iran.
President Trump tweeted on Monday that he will be making the announcement at 2 p.m. Eastern Time from the White House.
He has long threatened to pull out of the 2015 agreement, calling it "terrible" or a "catastrophe". The deal lifted certain economic sanctions on Iran's energy and banking sectors in exchange for limiting Tehran's nuclear program.
"It should have never been made. And we're going to see what happens on the 12th. But I will say if Iran threatens us in any way they will pay a price like few countries have ever paid."
The decision will have a ripple effect beyond Iran, and some say it could affect any potential deal over Pyongyang's denuclearization.
However opinions divide on the matter; some experts say Pyongyang will worry about the case if they aren't convinced their safety is guaranteed.
"North Korea will be worried that the U.S. could scrap the deal with Pyongyang or won't keep its promise to guarantee North Korea's safety. If Pyongyang feels threatened because of decision on Iran, it will be less enthusiastic about implementing the agreement."
Another expert says North Korea's case is completely different from Iran's.
"I think they have learned a lot of lessons from not only the Iranian cases, but from the Libyan cases as well. So because of this I think there will be a little impact on the another possible summit meeting between Washington and Pyongyang."
And he says that North Korea and the U.S. may even come up with a better deal after learning from the Iran nuclear deal.
Cha Sang-mi, Arirang News.