1 of 1 The US and Iran have not formally declared war since 1979, but both have the ability to launch nuclear weapons at the other’s borders.
The US has already deployed nuclear weapons on the Iranian border, but it has said it will not use them against the US.
The Iranian government has said that if it was attacked, it would retaliate with its own nuclear weapons.
Iranian President Hassan Rouhani, speaking at a press conference in Tehran on Wednesday, said the US is “not a friend” of Iran, and that if the US launches a war with the Islamic Republic, it will be an “accident”.
“The United States has made a mistake by opening its borders to the US and the US has made another mistake by giving up its nuclear weapons,” Rouhani said, according to Iran’s state-run Islamic Republic News Agency (IRNA).
“If they do it again, Iran will defend itself, and it will use its nuclear missiles,” he added.
US Secretary of State Rex Tillerson told reporters on Wednesday that he is “deeply concerned” about Iran’s actions, but that Iran should respect the deal.
“The agreement was reached in good faith, it’s based on trust, it has not been breached,” Tillerson said.
“And we’re going to abide by the agreement.”
US President Donald Trump has been in office for less than two months, and has already imposed sanctions on the Islamic republic.
On Wednesday, the White House issued a statement saying that the US “will not engage in military action against Iran”.
“The US stands with our allies, including Israel and the Arab world, and we stand with our partners around the world, including the Iranian regime,” the statement said.
“As the President has said, he wants to see the world live up to the spirit and the letter of the deal.”
The White House added that Iran has “not demonstrated that it can meet the terms of the agreement”, but that “Iran will not accept any actions that harm US interests or undermine the ability of the US to protect the world”.
The US will also be “reviewing” the agreement “to ensure that Iran fulfils its obligations”, the statement added.