After his long-running criticisms since the time he stepped into White House, U.S. President Donald Trump finally announced on Tuesday the U.S.'s exit from the agreement with Iran, known as the Joint Comprehensive Plan of Action (JCPOA).
"If they do, there will be very severe consequences", the President said Wednesday during a Cabinet meeting. However, they have also conceded that the pact negotiated by former president Barack Obama is far from flawless and needs some "fixes".
This comes just the day after he pulled out of a landmark multilateral nuclear accord.
The American Jewish Congress is very concerned by the emerging allegations that Iran historically continued to expand its nuclear weapons program and may continue to do so, despite its claims otherwise.
In light of President Trump overturning the Iran deal, it's not clear how much confidence North Korean dictator Kim Jong-un will have in United States assurances when he holds his summit with Mr Trump on denuclearisation of the Korean Peninsula in the coming weeks.
EU High Representative/Vice-President Federica Mogherini criticized the U.S. move to reimpose sanctions on Iran - because Iran has been an economic windfall for the Europeans. What it can do-and what Trump has promised to do-is attempt to force the deal to collapse by also imposing sanctions on countries that do business with Iran.
The government said the United States pullout damages its credibility on the world stage and the credibility of accords the USA has signed, and puts "the present system of worldwide law in serious danger". They've gotta understand life. He said, "India has always been maintaining that the Iranian nuclear issue should be resolved peacefully through dialogue and diplomacy".
"I think that the impact of what the president did today was not just isolated to the Iran issue", said Kelly Magsamen, vice president of national security and worldwide policy at the Center for American Progress.
Iran's poor economy and unemployment sparked violent nationwide protests in December and January that saw at least 25 people killed and, reportedly, almost 5,000 people arrested.
Major companies in the USA and Europe could be hurt.
He said the sanctions will sharply curtail sales of oil by Iran, which is now the world's fifth largest producer. Other likely beneficiaries include Russian Federation and Venezuela, as well as other oil-producing nations in the Middle East.
"The goal is to prevent Iran from ever developing or acquiring a nuclear weapon and the detail beyond that is something we are going to have to flesh out", the official added.
Speaking immediately after Trump's announcement, Rouhani said he had instructed the Iranian Atomic Energy Organisation "to take the necessary measures for future actions so that if necessary we can resume industrial enrichment without limit".
"You heard last night that the president of America made some silly and superficial comments", Khamenei said. He predicted Iran would choose to negotiate eventually, or face consequences. But it added: "As directed by the President, we will continue to work with nations around the world to create a new coalition to counter Iran's nuclear and proliferation threats, as well as its support for terrorism, militancy, and asymmetric weapons like ballistic missiles".
He pointed to the appointments of national security adviser John Bolton, who has called for regime change in Iran, and Secretary of State Mike Pompeo, who advocated for military strikes on Tehran during talks on the nuclear deal.
"Obviously, we will do everything to defend our companies, as Europeans, and we will do it with the U.S. administration", a presidential adviser says.
Israel and Saudi Arabia welcomed the American move.