Americans "must understand that war with Iran is the mother of all wars and peace with Iran is the mother of all peace", Rouhani said while addressing diplomats Sunday in Tehran, according to Iran's state-run news agency IRNA. Iran has met protests with security forces and violence time and time again, but the unrest has continued on a regular basis throughout 2018.
President Trump repeatedly criticized Iran and the nuclear deal during his first foreign trip as previous year. North's Foreign Ministry accused the United States of making "gangster-like" demands for its unilateral disarmament.
Former President Obama helped spearhead the global agreement, which offered Tehran sanctions relief in exchange for curbs to its nuclear program.
The comment - similar in tone and wording he used a year ago in warning North Korea about its rapidly improving nuclear weapons program - came hours after Rouhani said the USA risked the "mother of all wars" in a conflict with Iran.
Secretary of State Mike Pompeo on Monday said that the United States is not "afraid to tackle" Iranian officials with sanctions at the "highest level" of its government. Many of them fled Iran after the revolution that brought Iran's ayatollahs to power. Potentially that would escalate the very situation the nuclear deal sought to avoid - an Iran with a stockpile of enriched uranium that could lead to making atomic bombs.
The first round of U.S. sanctions on Iran will come into force on August 6. Rouhani also said that a peace with Tehran is like "the mother of all peace".
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The context is the tussle over the future of Iran's oil exports. Some experts say Kim is using diplomacy as a way to win outside concessions and weaken US -led worldwide sanctions.
Pompeo said the Trump administration would be willing to hold talks with the Iranian government if it stops repressing dissidents and religious minorities and stops supporting militant groups in conflicts elsewhere in the region.
Iran faces the possibility of more USA pressure and "looming sanctions", according to the report.
He said "overthrow, disintegration, boycott and weakening" were the main U.S. policies against Iran. Some of its major European allies have been working to prevent the 2015 deal from falling apart.
Roundly applauded by his audience, Pompeo affirmed support by Washington for protesters in the Islamic republic.
His speech "only underscores the counterproductive nature of this administration's Iran strategy and parallels efforts by the G. W. Bush administration to prepare for war in Iraq", said Diplomacy Works, an organization that campaigns for the preservation of the nuclear agreement.